I find my 2 eels to be eating machines (lost the 3rd one the baby last week it died) The big Snow is something to watch as it devours silversides and Krill. The Golden Moray in the big 135 has not missed a meal since the day it came to live with me. None of the other fish go near it and they have had the tank for themselves for 4 years (until I added the eel last month I was concerned about adding anything and messing the tanks good record up but it worked out fine).