Yes the tank is big enough!! Enough right??? Well not if I had the money or space for something bigger! LOL If I was a millionaire this would not be big enough, I would want bigger but of course that is not going to happen working for uncle sam so I am more than happy with what I have. I really think this is the best dimensions, being 8ft X 3ft X 30" tall. I was able to get, in my opinion, awesome looking aquascape, with the depth and the height. I really did not have any cycle probably because I still had close to 500lbs of live rock from my 240 that never died off. Then i added another 100lbs of rock from Rob. Of course the sand got a little brown but that was it and it has gone away. It is running great, I just need some corals to start filling it up. So Dave what do you have?? LOL