I know I should never have done this, but I brought home a baby Manderin today. I couldn't help it. It was at petcetra and was in like a 2 gallon tank with a fake coral! It has been there 2 weeks. The lady and kid next to me were going to buy it and make up a salt solution for it??? Can you believe that!! I tried to explain to her that it wouldn't work. Then I asked the worker what they were feeding it. She said it was living on brine shrimp. I asked her to feed it and she did, and he did eat. I was torn what to do. I brought it home and put it in my 20, which I know is way to small. But if I can keep it alive till my big tank is ok..then maybe just maybe he'll make it. I know it's probably a mistake, but I just couldn't walk away from that situation without it.