How much live rock do I need to have? While I know I'll need to make nice little hiding places, How much of it needs to be "live". Besides live rock, what do you guys have in there. I'm on a budget so I'd like to make it a nice home. But it doesn't have to look like octopus disneyland in there. At least not at first. I'll worry about aesthetics later. This came up after my cousin informed me it cost quite a bit for the rock (he had a 90gal). Something like $400.00 Also, (If I can get my hands on a nice yet pretty cheap tank now) is it uncommon to find people selling everything but the tank at good prices? Or should I just wait for a great deal for a whole set-up? My thinking is I can find a local tank and perhaps get everything else for good prices on ebay etc... Thanks!