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

Used this to seal some acrylic aquariums to turn into bioactive enclosures. Caulk material is easy to work with but has lots of fumes. Instructions state to let cure for several days. Because of the fumes I had to put it outside for a week before I could set up. Worked well but a lot of prep.

Great product. Tank sprung a leak. Scraped the old seal off and cleaned the glass with 90% alcohol. Great finish, looks like it came from the factory!

This works great

Used this for a gecko cage. Use in a well ventilated area. This stick has a pretty strong smell.

I resealed a 65 gallon with 1 tube & had a little left .Take your time to be consistent with the bead more is better then less ! Pretty straight forward & it has a screw on top for storage should you have some left over as i did. Cure time is 24 hrs .I waited 48 ,so far so good👌

Works under water

Built an internal filter on 55 gal tank, good bonding with glass and 6 mm plexiglass. No leaks. Let it set up for 48 hrs before water testing. Instructions said to wait 21 days. But patience couldn’t wait to test it. So far really good.

Used this to glue glass tile to a mirror. Worked wonderfully. However, one of the two tubes cracked around the bottom of the tip rendering it useless in the caulking gun...not so great so giving it 3 stars vs. 5 stars