Kraken Bond Black Aquarium Silicone Sealant - (12x10.1 fl. oz.) 100% Waterproof Aquarium Safe Silicone, Non-Toxic Fish Tank Safe Sealant, Fast Curing and Strong Adhesion, 12 Pack

I’ve been using different types of silicone for decades as a plumber, and this is honestly the nicest silicone I’ve worked with. It flows smoothly, tools incredibly well, and leaves a very clean, professional-looking bead with minimal effort. I used it to waterproof an entire large reptile enclosure, including all of the interior seams, and it made the job much easier than I expected. One feature I really appreciate is that every tube comes with a removable tip and sealing cap. It makes saving and reusing a partially used tube simple, which helps reduce waste and saves money. If it proves to be as durable as it was easy to work with, it’ll become my go-to black silicone. Highly recommended.

It was my first time using on a fish tank it worked great and no leaks

Does the job!

Excellent product, Great adhesion, no more leakage good value and would purchase again

I use this aquarium silicone to after I spray the foam. After I apply the silicone on top of the spray foam, I press in cocoa coir for the back round of my paladarium. This stuff is super messy and sticky so make sure to use gloves and a mask too, it stinks. Make sure you have a caulk gun too, apparently that is common sense. It comes out very fast once you hit the trigger so be prepared. It does the job well and I have had no leakage issues.

Works great and dries quickly just don’t breathe while it’s wet

Great adhesion to acrylic

Great product easy to apply strong after it’s dry. Make sure it’s over 48-72 hours. Longer is better than rushing it

good stuff !!

So far so good on this silicone. Used it to build my paludarium. A long term review will be helpful, I notice I can peel off bits of this product but I am in a high humidity environment with swings from 60-85% daily. So far no leaking between the water and land zone though, make sure to make it really think and I don't think you will have a problem. If you only use a very thin amount, be very cautious.