My old baby biorb is now in the garage unused - they're really not the best. For your money, you could probably get a nicer setup. If you do get it though, I wouldn't keep more than shrimp or a couple of male endlers in there personally. Perhaps it would be worthwhile just keeping shrimp, planting the tank (whatever will grow under the light, that is) and removing the filter & 'bubble tube' it comes with - the filtration really isn't up to much IME and shrimp probably wouldn't need it if you did regular w/cs.