The flashy Flame Angel is a very hardy dwarf angel. With a max size of only 3.9 inches a Flame Angel is suitable for a nano tank 20 plus gallons in size. They are not good reef fish as they tend to nip on LPS corals, Zoo’s, calm mantles and some sort corals. Feed your Flame a variety of foods containing spirulina and marine algae as well as meaty food’s such as PE mysis.