A silicone sealant ideal for building aquaria and fishtanks in glass, with or without metal frames. It is ideal for repairing cracks, mounting valves, applying fixtures inside or outside the tank/pond, and for sealing connections.

Unique underwater "silicone" sealer. This sealer looks like black silicone sealer but it sticks and sets underwater. It is non-toxic and solvent free and can be used safely with fish actually in the tank / pond, fresh or saltwater.