Originally Posted by eel freak
he used to eat 3 pieces a day but he has not eaten for7 days
3 pieces of what? What are you feeding it?
It's not uncommon for eels to fast for extended periods. 2-3 weeks is not unheard of. Heavy breathing may or may not be a cause for concern. Eels often appear to be breathing hard but they displaying normal respirations.
Most eels are pretty hardy. Problems arise from impactions or internal bacterial infections.
Can you post actual numbers for your water parameters? Saying they are good doesn't say much.
Originally Posted by eel freak
nitrateso ph:00 kh:10 calcium over :520
I am sure you don't mean your ph is zero. Can you post your actuar PH, ammonia, nitrite, and SG readings? Eels normaly eat 2-3 times a week. If he was eating daily before then he probably is just "full". Post those reading so we can be certain something isn't stressing him.
Unfortunate. He may have had an impaction from undigested food. This in turn could have contributed to an internal infection which caused it's death. IMO, you were overfeeding. Eels are fine eating every 2-3 days.