I think you made a sound decision. I kept a 45g african cichlid tank at the office at one point and it was such a pain having to lug water around for partial water changes. I used to breed frontosas too (at home in a much bigger aquarium), one of my absolute favorite fish. I keep telling myself I'm going to setup some awesome fish tanks again when I get settled into a permanent place, but I've not done fish in so long because moving with them is a pain. Course so is with snakes, but in my opinion snakes are a lot easier to move than the type of fish I tend towards.