For hairline, spiderweb, and straight cracks, you can repair these yourself with ceiling repair products. A hairline crack in a bone may produce lameness, but not enough to cause the horse to be super protective of the limb. Also, remove any old caulking. 0761 d) 0. Hydraulic cement does a fantastic job sealing the outside of a crack as it provides a strong waterproof seal. I was cleaning my tank and noticed a hairline crack in the side of it! I have no idea who manufactured it (some places offer lifetime warranty) and cannot afford to. To prevent hairline cracks in a shower base, you should follow these simple tips: Make sure that your shower base is level – Even a small deviation in the base can cause cracks to appear. Too high a downtime of 19 hours was incurred with the detection of hairline cracks at the wafer sort process that implemented aCross Crack Check (CCC) at chip probe (CP). Yes. Hairline cracks – Hairline cracks, also called cosmetic cracks, usually form within the first year of a newly-built home. Elkay advises running cold water while pouring boiling water into the sink, such as. If you do use a piece of scrap plastic as a patch, cut the plastic to a size that fits the crack, and try to use the same type and color of plastic. First, the crack is cleaned, dried, and then blown with compressed air to make sure it’s free of any debris. Squeeze out equal amounts of the two-part resin kit and mix together thoroughly before applying. Causes are a hard bump in shipment, a hairline crack in the tank that no one noticed, the tank being put on an unleveled or uneven surface, or plain old bad workmen ship when the tank was being built! This doesn't happen very often, but it does happen. Alas, the hairline cracks to which you are referring are common, and occur mostly due to the fingerboard having shrunk a bit, as a result of drying. If a hairline crack isn’t sealed, moisture can get inside. It is only on the outside though. This will create a structural weakness in the pot. T : 020 7862 6363. It then bonds with the surfaces and as it cools, becomes one with your china. However, it has a high viscosity and can’t penetrate deep into the crack where most of the fissure resides. Fine cracks such as the one above on the neck of the case render it useless. Spider: A divot or bull’s eye with small cracks radiating outward. 1. Professional repair costs for Ice Pick cracks can range from $50 to $70, depending on the depth and length of the crack. Bouncing Floors. Clear any debris from the cut (a shop vac could be handy). Just remember to prepare the area well, apply the repair material evenly, and let it cure fully before driving on the repaired rim. Im not talking small cracks either, It completely cracked all the way through! He was moving a rock on the bottom of the tank and dropped it smashing the bottom. As previously mentioned in the January issue of Walls & Ceilings, wall and ceiling contractors know the frustration of hairline cracks that are inherent with a stucco system. If a tooth has a vertical crack that doesn’t extend to the gum line, it’s often possible to save the tooth. These types of cracks don’t run in one straight line. I know it looks stupid but it will work. Use gentle pressure to push the syringe through the film and into the crack. Step 2: Apply The Caulking To The Crack. Add Screws to Stabilize the Crack. Hairline cracks: If you notice cracks around your windows. This is a hairline crack in the thighbone that may not involve your whole bone. These hairline cracks in teeth aren’t a cause for significant concern because they don’t usually progress into deeper cracks. Photo courtesy Massaro Media Group and JNJphotographics. They checked it out and found a very small hairline crack where the intake hose attaches to the canister and the black rubber seal had a knick in it. The pressure of the water is pushing outward, so if the external wall is compromised, the crack will continue to spread and potentially give. With some effort, the aquarium should be sparkling clean. Step 4: Fill The Cracks With Resin And Repaint. This article will focus on. But the question still remains, How did the toilet crack in the first place? Porcelain is certainly not indestructible, but it can be depended on as a durable material in the low-impact activities of a bathroom. I was cleaning my tank and noticed a hairline crack in the side of it! I have no idea who manufactured it (some places offer lifetime warranty) and cannot afford to buy a new one. To fix the crack, you have a couple of options. By understanding the potential consequences, you can take proactive measures to protect your beloved aquatic companions and maintain a thriving underwater ecosystem. Cracked bathroom tiles can be caused by either an instability in the surface under the tile or, in rare cases, the low quality of the tile itself. Use sandpaper to ensure that the tub is the right shape. Step 3: Apply the epoxy to the crack in the glass using a putty knife. For the most part, a hairline crack should be difficult for you to even notice. 1K subscribers Subscribe 205K views 5 years ago In this video, I'll show you how to. Can even run HOB filters if they’re sturdy enough, otherwise airstones, and sponge filters if they’re gonna be in there for a while. Or it can happen when a person jumps or changes direction quickly and twists his or her foot or ankle the wrong way. Repair is simple with fiberglass tape by using water-activated resin, which hardens around the. With a taping knife, patch the cracks with a thin layer of drywall mud. Smear the epoxy into the crack or chip until it is filled. 3 millimeter wide. (I admit to being paranoid. Use a spray bottle of soapy water to spray around fittings, including the emergency release valve and tank-bleed fitting on the bottom of the tank. Web-like cracks in the ceiling are typically an easier repair project as long as the cracks are only surface-level. Inspection of the crack is done and if any oil or stains have penetrated the crack and have discoloured the concrete, the stains will have to be addressed before repairing the crack. Due to plastic shrinkage is the occurrence, hairline cracks are commonly. The main characteristics that suggest a crack is much more serious are the following: Wide cracks over 5mm. Step 3: Install New House Wrap and Lath. There are cases where people used the same cracked cup every day until the died from heavy metal poisoning. Cracks typically extend far beyond their visible extent, and even a hairline crack can greatly weaken your windshield. REPAIRING CRACKS IN SIDEWALKS Cracks in sidewalks that are larger than hairline cracks must be enlarged before they can be satisfactorily repaired. First, clean the mug with warm, soapy water and dry it with a soft cloth. Vacuum leaks (air leaks) in an intake manifold make it difficult for the engine management system to maintain the proper air/fuel ratio. In poured concrete foundations, hairline crack frequently appear in the center of the walls because the wall. Let the concrete dry before filling the cracks. . Step 1: Clean And Dry The Sink. There are many different types of ceiling cracks, ranging from superficial cracks caused by installation errors to structural cracks caused by major issues. This crack is above the steel beam and appeared a few days after the install. Publication: Special Publication. Before you start the repairs, clean the tile completely to ensure the epoxy repair and paint stick. Inject epoxy or polyurethane into the crack to. A hairline crack in fish tanks is a tiny cleft that sometimes develops in the inside or outside of the glass, especially at the bottom, edges and in the front of the aquarium. . A hairline fracture, also known as a stress fracture, is a small crack or severe bruise within a bone. Bruxism is a form of tooth grinding or clenching that usually arises as a coping mechanism for stress and anxiety. If this happens, the filler will dry out before the crack is properly sealed. The adhesion you get from the PVC glue will seal up the crack nicely and stop leaking immediately. It can happen to older adults after a minor fall because they tend to suffer from a loss. 0:00 / 4:06 How To Fix a Cracked Aquarium Tank Fine Fins 37. Ice Pick. If the crack is near any woodwork or trim, cover it with painter’s tape to protect the surface. The epoxy should be fully dry in. Here’s a summary of how to seal a leaking concrete bird bath. You may need to polish the area after. If your home has settled significantly, contractors can raise it back up and shore it up with foundation piers for $1,000 to $3,000 per unit, or by slabjacking or mudjacking — a process that involves pumping a. (I know, that was stupid. It then snakes up to where the. ago. The condition can often happen to athletes. Acetone. Gradually, the exertion could cause hairline cracks by damaging the enamel and dentin of teeth. At last, even out the surface and point it out. For example, if you have a tiny 1 ⁄ 2 inch (1. Worst case, it's a long deep scratch on the outside of the tank. Step 1. After the leak test when I was about to remove the adhesive stains, I found the crack. Some cracks and bulges in plaster may be superficial or localised; others result from failure of the masonry or timber beneath, or may indicate wider structural problems within the building. If you can form two clamping cauls for the interior and exterior shape of the bowl, then you could seal them to prevent migration of the glue and use a clamp to force a glue/wood mixture into the crack. Use a concrete and asphalt cleaner to scrub the area and rinse with water. Jan 16, 2021. For example, if you have a hairline crack on the outer level of the enamel that doesn’t cause pain, there is a chance it may repair itself. Hairline cracks can be repaired with a vinyl concrete patching compound, using a putty knife or trowel. While hairline fractures can occur in any bone, they are most common in the weight-bearing bones of the foot and lower leg. Today I noticed what looks to me like a small hairline crack on the side of my tank! I have had the tank set up for about 6 weeks. Apply more epoxy mixture then a sealer to fix a hairline crack in a fiberglass tub. If you used a slow cooker liner in the cracked pot, dinner is saved. [6] The adhesive is not fully dry yet, so don’t immediately use the bowl! 2. You may have to purchase the PVC glue, but it’s worth it. The rubber washers inside the tank are shot, and that's what's causing your leak. Your floors are not invincible, so any large appliances and furniture resting on your tiles can eventually wear them down. None. Any crack or chip is a new tank for me. Step 3: Mix The Resin Epoxy. You will get them at any local hardware store. Work the adhesive back and forth across the crack, gently. According to him, the aquarium was cleaned daily by four divers and on weekends by two divers. Dark Storm. Bluestreakfl. In this post we will look at the different types of cracks in walls ranging from subsidence cracks to a common hairline crack that you may see on a ceiling or plastered wall. These will vary in price though and from the order I stated above will usually increase in price as. What causes hairline cracks in tiles? During the manufacturing process, the glaze and the body of the porcelain and ceramic tile are bonded together using extreme heat in a kiln. Aug 17, 2021. You really cant tape it because the corner is already "full" of mud. Bubbles and Delamination Only Gets Bigger. Step 5: Dry the Sealant. One runs from the corner of the tank to a little bit on the front glass which is what's pictured, and a very small, probably the size of a fingernail from a pinkie, sized one an inch underneath that on just the corner part of the tankYes. Smaller chips and hairline cracks are typically repairable. Avoid biting down on hard foods like ice, nuts, or hard candy. These come as: Sprays; Semi-liquids (which you apply with a sponge)A simple broken rib usually means that a person has a hairline fracture in one of the rib bones in the chest. The hollow tile might be because there is a void under it or that it isn't bonded. At European Denture, we provide the following denture repair and reline services: Hard Chairside Denture Reline – $190 each. To use it, you must first clean the crack and surrounding area. Stucco hairline cracks can be caused by a variety of factors: improper mud mixture, new home settlement (from drying timber/framing), seismic movement, and. If the crack is thinner than the penny, it qualifies. Compress the clay by applying pressure from both sides. Permanent Laboratory Hard. Some info on the crack: -it is about 1/2” long. If the tile is dirty, you can use rubbing alcohol to remove any grease or dirt. If you randomly select 2 vials from the shipment, what is the probability that none of the 2 vials have hairline cracks?Clean the ceramic tiles hairline cracked area. . Try one application, test it after it dries, and if it leaks, give it another application. Straight Separation. 1. Watched was cracked but didn't recall banging it out bumping it on anything. They are very fine cracks, not much bigger than the width of a hair. But the newer acrylic stucco products and crack suppression systems have greatly decreased cracking. Uneven stress cause due to the reduction area of the wall at the window. Hairline cracks that are too narrow for sand are filled and repaired with two passes of the CrackWeld resin. Use 400 grit sandpaper to smooth out the scratch. Ceilings that have multiple cracks that are more than just a small hairline crack are a concern. Hairline cracks are common as a driveway ages and weather takes its toll. You can use a dry cloth or let it air dry for a few minutes. As long as these cracks are very thin and not wider than 1/16 inch, in most cases these are normal and not a sign of a structural problem. For hairline cracks, choose a liquid concrete crack filler or thin caulk, which can flow easily into the crack and fill it. I have installed tempered glass protector and bought an overpriced case to protect it from any damages. Here are some tips to keep your teeth healthy and strong: Brush and floss regularly to remove plaque and bacteria from your teeth. Refraining from thawing frozen foods before tossing them in your slow cooker can cause the crock to quickly change temperature. Clean the sink surface with a soft cloth and mild soap to remove dirt and grime. Visit a healthcare provider if you feel pain, swelling or. 2. POSSIBLE CAUSE. Hey y’all happy New Year. As a result, hairline cracks are more likely to emerge in those with this condition. Pressure washer or cleaners. Step 6. Hairline fractures are small cracks in a bone that occur after stress is placed on the lower leg. Apply stripper on the surface with a paintbrush. The width of human hair and hairline cracks in the concrete are very narrow. A chip fracture within a joint tends to be more stable and less urgent but still can lead to performance. Lake Saint Louis, Mo. More minor hairline cracks along the bowl or tank are fine and typically unsightly but not concerning for the overall toilet’s structure. If it's hot to touch, take a break. Fractured cusp: A crack forms around a dental filling. Correlate the width of larger cracks to the age of the building. To repair wide cracks or cracks with a void underneath, first, fill the crack partially with sand to prevent the CrackWeld resin from running out. If you used plumbers putty, it will dry in less. Apply the epoxy along the crack, allowing it to seep down into the gap. Hairline Cracks in Concrete Block Walls. 3 cm) hairline crack, drill several 1 ⁄ 4 inch (0. Use a caulk gun to fill the crack with the urethane compound. Next, heat over low for an hour. Cracks become serious when they start to exceed 25mm, these are the cracks to worry about. However, you need to ensure that water does not stand or clog. A ceiling crack that continues down a wall. Again, try to remove all bubbles. It takes >1,000,000 psi to compress glass to the point of any phase change. Figure 3 shows images of a crack before and after the application of image processing algorithms designed to enhance the visibility of hairline cracks. Mix the resin and fill in the crack using a toothpick or popsicle stick. Like, really clean that sink. Please help!! cracked fish tank. Hairline Cracks. one day after cleaning the outside with vinegar, ended up scratching the scuff mark off. Having dentures relined costs between $300–500. The moisture content underneath the concrete is another common culprit behind patio cracks. 3. Insert insulating foam into the holes to prevent further flexing, advises Homebuilding. An Experimental Investigation into the Residual Bond of NSM Composite Strips for Concrete at Elevated Temperatures. But, there is no reliable way to fix the multiple broken pieces of a crock pot. Keep in mind that hairline cracks in teeth are craze lines. this cage has been sitting for years. Turn off water (I think you're already here). Determine Depth and Severity of the Scratch. It is a 2. The condition can often happen to athletes. Practice oriented papers and articles ON HAIRLINE CRACKS. Yes, it is normal for new concrete to have hairline cracks. Of course, it is. The vertical order of these cracks, from top to bottom, signifies the general prognosis for a particular crack. Step 6: Allowing the Repair to Cure. Some fractures require surgery to repair. Melt the edges of the crack with the soldering iron. Step 4. Treatment may involve applying ice to the affected area. The repair steps are very similar to repairing cracked aquarium glass and they are: - Removing pets, plants, and decorations from the aquarium tank, Steps to Repair a Major Crack or a Leaky Aquarium Glass. I just received my jbj 28 gallon today. co. You might find them near windows, corners of your walls, floors, or at longer sections of your foundation. If you just fill over you are creating a bump which will show up. Stone Edge Su. Try to smooth the epoxy so it sits totally flush with the tile surface. Keep point 3 and 4 in mind. If it is acrylic it can be glued using the right glue and wicking it into the crack, it's a solvent that will "weld" the crack closed and once it has evaporated away will be safe. Cleaning of Crack. #1. Add enough water to make a good mix. I was hoping i would get another bearded dragon, but im way to buisy. Different sources will typically cite different dimensions for a hairline crack, but the general consensus is that if you can’t see the crack without looking. Clean the area of any dirt or grime. Step Three: Apply fiberglass cloth and resin. In this ACI (American Concrete Institute) addresses this issue in ACI 302. Refrigerators, stand-alone freezers, and washing machines can all contribute to these types of tile cracks. Last edited: Jun 21, 2017. These include bonding, a crown, or even a root canal prior to restoring the tooth. Tank is 6 years old. Just drill a 3/8 inch hole into the crack and push the nearly water thin Concrete Mender into the cracks. The fingernail test is also useful to determine if you can fix a scratch yourself. This causes the less flexible lower coats to crack, eventually affecting the topcoat. Yep. Related: Crystal Red Shrimp: The Ultimate Guide to Caring for These Beautiful Creatures. The location and severity of the crack will be a factor in that decision. Some hairline fractures are cosmetic, while others can cause tiny leaks if they go through the entire thickness of the toilet bowl. Some of the types of ceiling cracks are: Hairline cracks. Using either a craft stick or your finger, apply the wood putty along the hairline crack. So here's where. Cleaning Tips for Aquarium Glass. Allow the repair mix to cure completely. Causes. Huge aquarium bursts in Berlin: many fish die in a tragic accidentDIY Repair Kits. What looks to be a hairline crack in my tank | REEF2REEF. A split tooth has a crack that separates the tooth into two. Than mix up the epoxy using craft sticks and spread it over the sanded area. However, when these cracks widen and deepen to 1/16″ (2mm), they become a safety concern and should be replaced immediately. The tank is 12" high, and this crack starts at the top and goes down 6". Use 400-grit or finer sandpaper to smooth out the repaired area until it is blended in and even with the rest of the sink. Even a chip in a large tank is case to worry. Since cracks can subtly change over time, the best way to measure changes is to take pictures and measure cracks every six months to one year. The adhesion you get from the PVC glue will seal up the crack nicely and stop leaking immediately. in an oven, to at least 150°C. Generally speaking, repair services for windshield chips smaller than a quarter, and cracks up to three inches long can be easily repaired. Sweep the floor well to ensure there aren't any crumbs, dirt, or other debris on the. Next, you will want to apply a bead of caulk along the crack in an even and generous manner. What should I do? Do I need to purchase a new tank? Anything helps. A hairline crack is a fragile but deep crack in the concrete. A hairline crack is a tiny cleft that sometimes develops on the inside or outside of the glass. 301K subscribers in the PlantedTank community. Clean the groove by brushing off excess concrete and dust. You can use concrete caulk on both vertical or horizontal cracks. It can be difficult to know if you have a cracked tooth. Your piece, if the crack wasn’t too far gone, should now have resealed itself! The idea is that the protein in the milk expands when heated and fills in the cracks. Inside is not the problem. If you can see the depth of the mark going through the glass more as you move your head, its likely a crack, whereas if you shift your angle and it starts to become less visible, its more likely a scratch. If it's inside the force pushing outward sort of 'keeps it together'. If this happened to you, then you need to follow the instructions above to repair the crack. Inject epoxy or polyurethane into the crack to. Using a needle tip mixer (14, 15 and 18 gauge), a low viscosity repair material can easily be injected into hairline cracks without routing Kelton Glewwe, Roadware, Inc. These two materials can expand and contact at different rates naturally and this is what causes the hairline cracks known as crazing. In conclusion, fixing hairline cracks in ceramic mugs at home is possible but proceed cautiously because safety comes first when drinking hot beverages! Put on a pair of rubber gloves. After leveling and placing the tank on the stand I noticed all these white lines that looked like scratches or cracks. Try applying it to both sides of the crack if you can. No reason to argue. Apply epoxy at least half a centimeter on either side of the crack, but be sure to avoid the grout. When asked by the newspaper whether this could possibly cause hairline cracks in the aquarium, the diving instructor explained in an interview: “Maybe. First, clean the area around the crack with water and soap. Particularly common following water damage, hairline cracks develop along the loosened edge of damaged drywall tape. Hairline cracks can be done without the sand. The process of healing the hairline crack is known as remineralization, which refers to minerals in your mouth. In this blog post, we will delve into the often overlooked danger of ignoring a seemingly harmless hairline crack in your fish tank. Our top pick is Sikaflex Pro Select Self-Leveling Sealant . Then the injection fitting is set up and the epoxy is injected into the crack until. Roll Crack-Tape Composite Tape. 5 Types of Windscreen Cracks and Chips. Step 2: Remove Lath and House Wrap. Instead, thaw the food in the microwave quickly if you are in a hurry. We discuss which cracks you should be mindful about when buying a property (or ones that exist in your own. Before you begin repairing the crack, you’ll need to prepare the area. Alternatively, hairline cracks occur in drywall. Try applying it to both sides of the crack if you can. Allow to cool in milk and then remove and rinse. When inspecting your cracked toilet, make sure that the cracks are not larger than roughly 1/16th of an inch. The items you’ll need to fix a hairline crack on a PVC pipe include PVC glue, some sandpaper, and some rags. Clean thoroughly. Medium cracks are cracks that are one-eighth of an inch to one-quarter of an inch wide. Apply the putty over the crack, then smooth it out until it is even with the surface, then let it dry completely. You can fix it for $10. Wear a mouthguard if you grind or clench your teeth. Same as hairline cracks, over time, it can cause serious problems. Your dentist will determine which one is best for you. The brass case is the one component that is reusable in the reloading process. These diamond brite damages are big problems because as time. The crack started at the 9 and goes up diagonal through the 2 image. Numerous DIY repair kits that claim to fix hairline cracks are available in the market. Take Aqueon’s. For example, the concrete finishers may add too much water to the concrete mix to make it more malleable. Step 1: Remove Loose Stucco. Repairing small cracks in drywall is also easy. g. 2. In drywall cracks often occur due to the movement of underlying framing materials, such as wood studs, or damage to tape seams between adjacent sheets of drywall. Depending on the state of the cracked clay, it is usually sufficient to heal the crack. A hairline crack is a potential breeding ground for bacteria to grow if food accumulates in the crack. Stress fractures are tiny cracks in a bone. Cost to repair drywall cracks. I have an American Standard Cadet 3 that has been in use for three years. Once I noticed that my crack was spreading, I started doing some research and found out that there are many different. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Why leaks occur in glass aquariums, and common mistakes to avoid making repairs to a leaky fresh or. The repair has to be structurally effective. Apply mud on the hairline cracked area. Panels may become cracked or damaged due to excessive heat from an improper fire in the. Start by cleaning loose material out of the crack and fill it with joint compound. Turn on the water supply to the toilet. Usually those things appear on windows or plastic doors but not in tanks with water. If you don’t have access to welding equipment, don’t worry! You can still fix a cracked rim using epoxy or a cold-weld formula like JB Weld. Then spray on two to three light coats of Good-Bye Cracks. Craze lines are a cosmetic issue, and major dental procedures won’t be required to fix them. Fill the crack with an appropriate repair mix. Any repetitive motion or activity that puts pressure on your bones can cause a stress fracture — playing a sport or doing physical work are common causes. Keep the syringe still and slowly push on the plunger. Its possible". It might sound counterintuitive to open a crack, but this is to make sure that the old clay will attach to the old clay. If you're dealing with thin hairline or spider cracks, first brush or vacuum any loose material from the gap. Arguably one of the best abrasive materials out there, cerium oxide is a pale yellow-white-looking powder mainly used for polishing and removing fine scratches and scuff marks from glass and mirrors. Step 4: Apply the First Stucco Repair Coat. For medium-size cracks (about 0. How Do You Fix A Cracked Fish Tank (Including Hairline Cracks) Step #1 — Move Your Fish. Rating - 0%. Don’t rush the process! Once the surface has dried, sand it down so the surface is completely smooth and. Location. Checking critical engine parts and castings is time well spent if it heads off a major problem that might result in a major engine issue or a warranty claim. Cut off the bolts and remove them. Vertical and other smaller, hairline cracks are the easiest and least expensive to repair. This is the first and foremost step in the repair of hairline cracks in the concrete. How you repair the crack or cracks will depend in part on the size of the crack. This is known as undercutting. Split tooth. Rating - 0%. In some states, it’s also illegal to drive with a windshield crack. Selection of Sealant. Push down the plunger to fill the crack with resin. The symptoms of this injury may mimic those of tendonitis or muscle strain. Use a stainless-steel brush to avoid future rust stains caused by the steel bristles that break off in the process of scrubbing. WaterWeld™ has a set time of 15-25 minutes and. In most instances, craze lines are solely a. Step 2: Remove the Old Sealant. This will help dry the inside of the crack and make the epoxy stick better. Although it’s always horrifying to realize this. What looks to be a hairline crack in my tank | REEF2REEF. If the cracks have not changed in appearance over a few years you could try with the concrete patch, and if it reoccurs next year use something flexible. Craze lines don’t usually cause pain, but tooth sensitivity can sometimes be a symptom of them. Sand the area with a very fine (400 grit. With time, the layers under the topcoat tend to get brittle from continuous expansion and contraction from the change in temperature and moisture levels. After the glue has dried, remove the clamp and clean up any excess glue. A hairline crack is one of the worst cracks to have on a glass tank because it can spread so quickly, and you cannot see it until it is too late. The soleus muscle can be stretched similarly but with the knee of the leg to be stretched and kept bent. The Dalton Latex-ite PLI-STIX is ideal for filling and repairing wider cracks in concrete (or asphalt) surfaces. Inspect the crack closely and check if it is a hairline crack or if it extends deeper. While wiping it down, I discovered a small scratch on the floor on the inside of the tank. Most cracks in nonstructural concrete slabs are caused by failure to follow one or more of the proper procedures. If the water in your tank is too warm, it can cause the molecules to move faster and become more active. Sand the area again, then apply an epoxy mixture followed by a piece of fiberglass clothing. the smallest crack compromises the integrity of the glass. Once I noticed that my crack was spreading, I started doing some research and found out that there are many different ways to fix a cracked aquarium. A hairline crack in the bowl or tank can be sealed with epoxy, but if left to grow, it could be beyond repair.