I used a little standard 10 gallon for a qt tank for a while, but over the last 2 months I've been converting it into a lps/softy/zoa reef. The whole idea is that my girlfriend is going to bring it to the daycare where she works, and put it in her classroom for the 1-2 year olds to stare at. Pretty much all the livestock was just extra stuff I cleared out of my main display to free up room. Didn't wanna have to get rid of some of them, so this way I kinda get to keep it. She works about 2 blocks away from where we live, so it will be an easy move and easy to take care of it, or to switch out livestock any time I want. Just using a hang on the back filter, K1 for movement, 2x screw in coralife 10 watt each 50/50 bulbs, and frequent small water changes.