CaribSea Super Naturals Crystal River Aquarium Substrate, 5-lb bag
CaribSea Super Naturals Crystal River Aquarium Substrate, 5-lb bag; Help your fish feel right at home with CaribSea Super Naturals Crystal River Aquarium Gravel. This gravel contains cool and coarse river sand to mimic your fish’s natural environment. It’s pre-washed, pH neutral and promotes the growth of beneficial bacteria colonies. This substrate is great for use in marine and brackish aquariums (sold separately) with proper buffering. Plus, creating a natural environment for your fish helps reduce aggravation caused by reflections in the bottom of your tank. Start your tank off healthy and comfy!