I used the GE 1 to reseal 2 different 90 Gallons aquariums. 1 was a patch job, and the other was a complete reseal. It's worked great for me. I've purchased it as recently as 3 months ago. Walmart, canadian tire, home hardware/beaver lumber(if theres still any of those around) and home depot all carry it. Here's a link to home depot
Altho it says it's window and door. It is 100% silicone.