Aqueon Aquarium Silicone Sealant Black 3 oz.
Aqueon silicone aquarium sealant
100% Silicone! This sealant is easy to apply and waterproof to stop leaks. The high strength silicone creates a permanent seal that will not crack or shrink and is NON TOXIC making it perfect for use on all aquariums. This sealant is BLACK and is made to seal aquariums that have black seals.