I have had sand in my tank for a while but now i'm looking for a change and looking towards Tahitian moon black sand.
But i can only find it in 20lb bags so anyone know how many i would need for a 48" x 12" tank to have a covering of about 1" 1/2 ?
But i can only find it in 20lb bags so anyone know how many i would need for a 48" x 12" tank to have a covering of about 1" 1/2 ?







