Caribsea Aragamax Select, Oolite 30Lbs
Ocean sourced aragonite material of the finest quality
0.5 - 1.2mm diameter grain size (approximate).
Also known as "oolitic sand", this product is ideal for shallower beds, allowing denitrification in as little as 1" depth.
The fine grain size can pass easily through the gills of gobies and other sand sifting organisms.
The smooth round grains are gentle to soft bellied sharks and rays.
White in color and metal free, no ash or silica.