Any cons to a slate substrate? I'm thinking large, 8x8 inch pieces to put at the front of my tank with the sand. Thanks
If its quarried slate for roofs it will have a smooth back which wont allow for waste or debris to get under it. My biggest complaint when I had it was that being that the front side is so textured that when algae grew on the slate that it was a pain to get off. Chewed up the plastic pads or scrubbers when trying to remove.
If you use the ones pre cut from a flooring store then they will be scored on the back of each piece thus creating a void for waste to settle under. But if you use sand to fill in beteween the pieces then waste cant get under them.
Here is a link to when I did mine. Got mine from work and cut each piece with a wet saw and fitting them in.
http://www.monsterfishkeepers.com/forums/showthread.php?365085-New-Slate-Bottom