I want to switch to sand substrate from the gravel I'm using now. Will this be OK with my common pleco, kissing gouramis, and bala sharks?
If you do go to sand, just be sure to frequently stir it or you will get toxic gas building up in the bottom of your tank. I had some sand in one of my tanks because it was softer on the catfish feelers, but I took it out this last weekend because I couldn't seem to keep it stirred enough and I kept getting toxic bubbles.