Re: planted aquarium discus substrate I use allot of SMS/Turface for all my tanks plus my 55gal discus tanks and I don't have any problems vacuuming it. You just can't jamb the tube down into the substrate but that goes for nearly every commercial substrate. You have to gently move the vacuum above the substrate about a quarter of an inch, just enough to pick the crude up but not enough to disturb it.
- Brad |