Thanks! I feel old even though I'm not. I was planning on a 40 but don't have room. I have the tank set up next to my desk so it won't allow any tanks 30+. The desk would need to be moved out of the room to fit. I wish I could get a bigger tank but no room.Belated happy birthday! Didn't you think about getting a 40g breeder recently? Now would be good, not much longer than a 20 but almost twice the footprint...