Ultra-White Calcium Carbonate Reef Substrate - Coarse Grade
This is the larger particle size version of our Ultra-White Fine Grade Substrate for aquarium with very high water velocity, or for hobbyists who simply prefer larger particle sizes. The Ultra-White Substrate provides the whitest calcium carbonate based sand available to the marine aquarist. This translates to greater efficiency of lighting systems by providing increased levels of reflected light from the aquarium bottom. 8.25 pounds of substrate will cover 1 square foot of tank bottom with a substrate layer 1 inch deep. The source of our Ultra-White Substrate is NSF certified for use in potable drinking water, and is extremely pure, making the coarse grade an ideal calcium reactor media. Testing has shown no detectable addition of orthophosphate to the aquarium from the reactor.