55-75g with a Jack Dempsey. My dad had one and I was always fascinated with it before I got into keeping fish. I'd also really like to have a 125g Reef tank.
The 40 gallon that's empty in my garage, medium platend with some driftwood. 2 nice nice sized schools of tetra's some cories and a pair of bolivian Rams. So close yet out of reach.......
I would like to have a FOWLR tank setup for 3 or 4 yellowheaded jawfish. Not sure what size it would need to be, havn't researched it at this point, since it's not likely to happen any time soon.
I would also like a nicely planted discus tank with 4 or 5 discus and a few blue rams and small cories for tankmates. Probably would have to be at least a 75 for that mix.
If I got rid of ALL of my other tanks and just had those two, I could probably be very happy....
as soon as i get the space, something in the neighborhood of 200-300g, probably stocked with cichlids, not sure of the fish though. outdoor pond will be happening this summer.