Tropic Marin USA Reef Mix Sea Salt FOR STORE USE ONLY 66Lbs/230Gal/30 kg

Exactly like our Pro-REEF Sea Salt Mix specially designed for commercial use ONLY. This is the product sold to Zoos and Aquariums around the world. The only difference between this and the Pro-REEF Salt Mix is the magnesium in this mix is in the form of a small flake. Otherwise the mix dissolves exactly like and is indistinguishable from our Pro-REEF Salt Mix.