I am still debating the tank, I will be moving back to Houghton MI at the end of the summer, and with the 75 discus I have, which is my primary tank I wolnt have alot of room or time, with still being in school, for the 2 tanks. I have a 55 that is set-up right now to house my polypetarus, and 12" bala that I dont want to keep with my discus. I am also considering converting this to salt at the end of the summer and break down the 20. Another option that I have considered is to do a Cichlid tank. I want to do a large scale salt tank in the future when i have a more permanent residence, and I viewed this tank as sort of a learning tank, that i can make my mistakes on a small scale before the errors start costing into the 1000s. I do realize that the stock in this tank would be minimal. The idea was a cleaner shrimp a tang and a maybe one other fish. I wasnt planning on doing coral because of the move and the setup time. I guess my question is would this serve as a good starter tank? And would it be worth setting up for the 8 or so months until i move, or would i be better off just going with some FW fish?