i cant remember the tank dimensions off hand. Im looking into another equal size tank to use as a refugium. Mostly for lols, not gonna lie. I could fill the spare tank with all sorts of fun gadgetry, which would help my water health and also effectively double my total value. I thing there is another guy on here who did the same thing. Anyway, I have a hermit crab that i will try to keep alive for a month or so before advancing further.