So far, the two other posts are saying no to the Mandarine because the tank is too small. Well, I had a mandarine in my 25gal for several months and now he is in my 32gal. He is fat, very active, and healthy. it is true that he needs plenty of copepods to eat but he will eat frozen brine too. Mine is constantly feeding on something. Mandarine fish are very picky eaters and if you get one that will eat, he should be fine, but that is if you are lucky to find one who will eat. I lost 4 before this one. 6line wrass is also a great fish. I have had one of those as well he was sadly devoured by my very agressive sally light foot crab. Very colorful, very active fish. In my opinion, you would probably do better with the 6line than the Mandarine, but that's my opinion.
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