well, it's a 55gal. i checked all the chem levels, salinity, temp, etc and everything is good. we have live aragonite as substrate as well as live rock. the light is "ocean sun" 10,000k, which i was told was bright enough for the anamone. tank mates include yellow-tailed blue damsels, an algae blenny, a maroon clown, and 5 cortez crabs. they are all flourishing.