Ok. I've been out of the hobby for a couple of years, but am going to be getting back into it with a Red Sea Max 65 gallon system. A friend of mine is getting rid of it and from what I can tell he has about 65 lbs of live rick in it already. The question I'm still trying to answer is whether I should set the tank up with a bare bottom or with substrate. In the past, I've kept both but had the best results with a bare tank. What's the latest on substrate and it's set up. I would love to get the biological filtration with the substrate but haven't been successful in the past. Thanks for the help.