Then this morning i notice another juvie doing the same thing, very pale gasping heavily and not eating. He is still alive, barely. An now at feeding time ive got another one doing the same thing.
Three within three days. Amonia is fine ph is fine. water temp is at 27 degrees. the other appear fine but so did these guys.
The only thing i can think of that i have done is water change 3 days ago, but all my other fish are fine and it was done as normal. please help.