[mendoza.inc]

I have 2 big fire eels and 1 big tire track and they all have these cuts first one had it and then the other 2 got it. Water is good and I do 50 percent water change weekly ,any help would be good but if any one can heal them u I would give them to u for a big bichir or free to the right person who can house them cause there all big

 

[mollyb]

These look like heater burns. make sure you have a cage around the heater because these guys like to huddle up next to/ under/around things.

 

[mendoza.inc]

I do have a cage around it it's the fluval e series

 

[mollyb]

Hmm, I dunno then. Perhaps bacterial, stemming from water quality, but you say the water quality is good, I would recheck my pH, nitrates, ammonia, etc. Just guessing though.