One of my student's family donaetd a 40 gallon tank with stand and lights. It has now cycled, has had nassarius snail introduced, and after Christmas break, I am going to bring in a 4-stripe damsel from my home tank.
The tank has a crushed aragonite substrate spiked with bacteria rich substrate from my home tank, some of the lifelike fake corals and some beautiful coral skeletons loaned by our zoology teacher. I have a full chemistry lab as a room, so water access is not a problem.
Bioload will be extremely small - my 4 stripe and some chromis. Whatever goes in will have to come home with me in the summer.
I plan on having one of my classes ( I teach freshman science) use some of the computer probes to monitor the chemistry of the tank. If it all works out well, this project will become pary of the curriculum.
You know you are a true fish-o-holic if you can field strip any powerhead on the market.