This is a young juvenile just starting to transform she is about 6 inches . I have had her since she wAs really small have put all different types of coral and sponges in with here with no intrest in any of them time will tell if she is reef safe . She is in a 100 gallon Rubbermaid sump with about 250 pounds of live rock she does have tank mates 3 wrasse that made it in there from being chase out bye an agressive terminal male filament wrasse in the display .a nako wrasse rainbow &solar