American Sealants Aquarium Silicone - Black 10.2 oz Pond Maintenance Not to be trusted with

Not to be trusted with tankmates it can fit in its mouth

Air flow can be finely tuned with the integrated adjustment dial to suit the intended application

Unlike many of the competing products on the market

0 mm and features an average density of 93 pounds per cubic foot

American Sealants Aquarium Silicone - Black 10.2 oz Pond Maintenance Not to be trusted withFormulated for fresh or saltwater aquariums, this silicone sealant adheres to glass without primers. When fully cured, this waterproof 100% silicone sealant is non toxic to fish after curing, is resistant to weathering, airborne chemicals and UV radiation. ASI Aquarium Silicone Sealant is a non slump sealant and can be easily applied to a vertical surface and will not flow or sag. Will not crack or shrink.