Akfix100AQ Aquarium Silicone Sealant Clear (1x10.1 fl. oz.) - 100% Silicone, Waterproof Aquarium Safe Silicone, High-Speed Curing and Strong Adhesion, Non-Toxic, Safe for Fish | Clear, 1 Pack

I use this for fishtanks and aquariums. Works good

Great glue will hold and dries fast

Showed up super fast

Smells very strongly of salt and vinegar chips. It’s also a pain to open. I had to look up a video on how to open this thing and needed to take a knife to it which is dangerous. Other than that, using a cheap caulk gun from Walmart, I was able to get my project done. The applicator is great for allowing small to large beads of caulk. Seals very well and seems to adhere to several kinds of materials pretty well.

Works and does wonders

I've got a large KAGES snake terrarium that I internally sealed with DAP aquarium silicone when I first put it together. Unfortunately, on top of the DAP silicone being a pain to apply because most tubes where partially dried out from sitting on the shelf and having to be squeezed by hand, the terrarium started to leak if enough water pooled; which means that the plants and springtails haven't been able to thrive like they did when the setup was a glass tank. Took a chance on this silicone sealant to apply to the outside of the terrarium in hopes that it would solve the leaking problem, and thankfully it 100% has. It's now holding enough water that all the plants that were on the verge of death, are now perked up and happy and the ground cover is finally looking like it's gonna spread like it's supposed to. Definitely a better choice than the DAP sealant.

I only got one tube. Where is my second tube of the sealant? I would like another one sent because this is not right that I was missing one.

I used it to seal around the filter box of an exterior koi pond and it was easy to use and looks great.