Aquarium 121 Silicone - Clear or Black colour

Wacker 121

On time delivery

121 black silicone

This is the best silicone for aquariums , great product made in Germany 🇩🇪. I was using Glass which is a clear silicone that I was buying from Bunnings, and it was only a few dollars cheaper than this 121 silicone especially made for building aquariums.

So far so good

Seems to be holding up so far re sealed a 5 ft tank