Gymnothorax moringa, hes 19" in a 125 fowlr with a 9.5" volitan lionfish, 4" blue hippo, 4" sailfin tang, 6.5" one spot foxface, 3.75" niger trigger and a 3.75" picasso, also are they all compatible? He just hides and sometimes opens his mouth for food he eats tilapia and shrimp with selcon added from tongs, he was free from a lfs owner