Flamingo Reef Sand: 1-2 mm diameter grain size. Coralline pink highlights make this substrate colourful as well as functional. Flamingo Reef gives maximum performance in plenum-type nitrate reducing beds, or simply a reef or fish tank bottom cover. Precision grading allows effective delivery of calcium, carbonate, and trace elements. Not bleach collected, no silica!

CaribSea Aragonite buffers to the highest pH and delivers more calcium, carbonate, and trace elements than any other substrate. Little or no rinsing required, aragonite keeps aquariums healthier, longer.