C caz I'm a Sinker! Apr 7, 2003 840 0 0 Jan 3, 2004 #1 is contractor grade, medium grade sand ok for the substrate? it says it may contain free silica
OrionGirl No freelancing! Aug 14, 2001 14,053 343 143 Poconos Real Name Sheila Jan 5, 2004 #2 Ideally, you want to find fine grained sand. You can use the medium grade, but you will need to rinse it first (not a plus, since you will lose most of the finer particles), and be prepared for a daitom bloom.
Ideally, you want to find fine grained sand. You can use the medium grade, but you will need to rinse it first (not a plus, since you will lose most of the finer particles), and be prepared for a daitom bloom.
