My friend has a foxface in a 55 gallon. He got the tank for 200$ including 100 lbs of live rock, sump, skimmer, stand, lights, and livestock. The lady he got it from neglected it, for the last month or 2 hes been trying to get all the fish back to health, but the foxface is still very sickly looking and skinny. I wouldnt put one in a tank that small.