BarryH
Member
I've been trying to find a supply of flat, black pebbles without success, can anyone please help or advise?
Having bought from a couple of different suppliers, the ones that arrived all seem to have been tumbled in a machine and have a waxy feel as though there is a residue on the surface. Not sure if this might be harmful to plants and fish. I did try washing the pebbles but the "wax" won't budge.
Having bought from a couple of different suppliers, the ones that arrived all seem to have been tumbled in a machine and have a waxy feel as though there is a residue on the surface. Not sure if this might be harmful to plants and fish. I did try washing the pebbles but the "wax" won't budge.