|
Its not uncommon for the head to be black-most likely it is normal pigment/coloration....post a pic......
Open gill plates all the time can be a few things....if its not a deformity of some type or an injury.... it could be due to scare tissue related to injury or ammonia burns.....again post a pic....
Is he gasping or breathing fast.....
Also, to be sure everything is okay we need more info....
What size tank, water temp, filter, live plants, how much and how often are the water changes, additives used, appetite, any tank mates, how long have you had him and has he ever been sick and/or treated in the past.....
|