Stanley Waterproof Aquarium Silicone - 12x10.1 Fl. Oz. Clear, Waterproof Bond to Glass, Non-Toxic Aquarium Sealer for Freshwater & Saltwater Aquarium | 12 Pack.

This sealant applies like any other silicone sealant and stays on just well too. It's clear. It does indeed bond quite well to glass (and presumably other things like countertops, etc). However, where it stands out is that it's safe for fish and other aquatic fauna. So far everything seems well in that regard too after fixing my small aquarium. Overall very satisfied.

It took over two months for this Stanley Aquarium Silicone to arrive, which was frustrating. However, once it did, I was really impressed with how well it works. I've used Aqueon silicone in the past, but this one seems to seal even better.Easy to Apply and Reliable: The silicone is easy to work with and provides a strong, waterproof bond to the glass, making it perfect for aquarium repairs or builds. I’ve used it on both freshwater and saltwater setups with no issues at all.Worth the Wait: While the shipping time was a pain, the performance of this silicone makes up for it. It’s become my new go-to for sealing tanks and projects around my sump.

When it comes to sealing aquariums the general rule is that plain 100% silicone caulks should be fine and aquarium safe, but for those the want a piece of mind and desire a caulk that is actually rated for aquarium use this Stanley caulk is a great choice... It's reasonably priced, and so far is working as expected... I used it to reseal a 55 gallon, I was going to fully disassemble the 55 and build it new, but decided to just reseal it vs risk breaking the trim rings... So far so good, the silicone spread out well and bonded well to the cleaned glass, no issues and the tank is no longer leaking...

This aquarium silicone sealer works very well. I used this on a glass case I made to make a small terrarium for a lizard and so far it is holding up well with no leaks. Overall very satisfied with the quality of this silicone sealant!

This applied just as it should. Nice n smooth. It stayed in place and looks great!

This silicone is great for aquariums. It isn't anything different from other 100% silicone tubes though.As you probably know, you want to use only silicone for aquariums as most sealants contain mold inhibitors which are toxic to animals. That rules out almost all sealants.Since I find all types of 100% silicone sealants to be basically identical in performance and quality, I would recommend this one as long as it's price is competitive. There are a lot of sketchy off-brands around too that I would avoid so with this you are getting a known brand.You can use this for other things than aquariums, but I don't know why you'd specifically select this one for it since you likely want the mold-inhibitors and can get it cheaper than this.

This is clear, aquarium-grade silicone sealant.As tested it dries clear in a reasonable short time. Stays workable long enough for you to smooth it out and get it where you need it. It also cleans up fairly easily. Priced a bit better than the known brands, but I waited five weeks for it, so it's a trade-off.

The best thing about these Stanley caulking tubes is that they come with a screw-on cap that seals tight and keeps the product fresh for several months even after opening and using.This 100% silicone is sticky and adheres to almost anything, including glass as advertised but also to wood, vinyl, PVC, or painted surfaces. It's good for aquariums, but also perfect for sealing weatherproof electrical boxes, outdoor lighting or other wall penetrations. Quality stuff that claims to be UV resistant. Time will tell how well it holds up over time, but so far so good.