I just recently, in the past few weeks picked up a couple gently used tanks. I got a 30 gallon breeder from Kinny for a great price to replace my AIO 20 jbj I have been using as a frag tank and invertibrate quarantine tank for the last few years. I wanted something with more volume that I could put a sump on and restart without substrate. I drilled it for the overflow and return (first time drilling one and it worked out great). I have it in my garage (fish room) and will be hooking the chiller up to it as the room is not temperature controlled.