R Runner6 New member Jul 13, 2009 #1 My fish keep opening and closing their mouths all the time very fast and I am reading it could be ammonia buildup? how do i fix this? and if there isnt enough oxygen, how do i fix that?
My fish keep opening and closing their mouths all the time very fast and I am reading it could be ammonia buildup? how do i fix this? and if there isnt enough oxygen, how do i fix that?
