ASI Aquarium Sealant Black Silicone  10.2 oz  ASIN# B00EZB2MDI
 
High quality silicone sealant
100%  Aquarium Safe Silicone Sealant
Non-Toxic Suitable for freshwater and saltwater aquariums
Won't crack, dissolve or shrink
Excellent Clarity
 
*Note - Color is Black