🐠 High-Quality ASI Black Aquarium Silicone Sealant - 10.2 Oz Cartridge Review

This is the material that good manufacturers use for most aquariums. This has been tested on 750 gallon tanks. Make sure you cover your tank, you can use emergencies I've heard from others.

120 gallons and 125 gallons resealed with this product. Works great and seems much stronger than the API silicone I've used before. Runtime is good and wasn't overly smelly.

It took me a while to get this right but I believe it was my usage that caused the problem at first. Eventually I was patient enough and accurate enough and the product worked very well. I replaced two plates in a 75 gallon hex tank. It's so frustrating to get it right, but the product isn't to blame. Would buy again. I actually bought it again because I needed more after screwing it up.

Excellent seal. The tube must be cut before attaching the applicator tip. The applicator tip is pre-cut giving a nice crisp bead. For larger, less precise applications, you can widen the tip of the applicator. In a tube, it does not dry out so quickly, so it can be used for several days. I had one of the tubes opened within a week before I finished it. It stayed tacky long enough to use a terrarium substrate for a natural look. For attaching terrarium decoration, it was stable in less than 24…