I have a Bluestreak Cardinal pair and one has been gradually losing swimming stability. I do not believe this to be parameter, disease or parasite related. I have had these cardinals for multiple years, have not added anything new to the system in over a year, test all parameters regularly including ATI tests, change water weekly, and all other fish in the tank are doing well.
My guess is maybe old age and one of the first symptoms of that is losing swim bladder? Otherwise Im a bit stumped as to what it might be.
Here is video:
My guess is maybe old age and one of the first symptoms of that is losing swim bladder? Otherwise Im a bit stumped as to what it might be.
Here is video: