Well i have both these eels, fairly large both pushing the 10 or 11 inch mark, question is my fire seems to hide alot more then the tire im pretty sure this is because the tire is more dominat, but there is no fighting, plus the fire seems to have a bump on him idk wat it is kinda looks like he swallowed some gravel, so im just gonna watch them, but they seem to get along like i said no fighting they hang out together...but idk the fire just seems to not eat as much...any input..only positive no negative