The fish that went skinny was it due to not eating.
Bacterial infections the list point too, long stringy white poo can be bacterial aswell as parasites, being lisltess and lethagic, darker in colour, not eating.
Columnaris is bacterial as well.
Long stringy white poo means.
Constipation.
Internal parasites,
Bacterial infection.
Also fish can hang at the surface and heavy breath with bacterial infections.
http
/www.petsforum.com/cis-fishnet/afm/G29060.htm
Bacterial infections the list point too, long stringy white poo can be bacterial aswell as parasites, being lisltess and lethagic, darker in colour, not eating.
Columnaris is bacterial as well.
Long stringy white poo means.
Constipation.
Internal parasites,
Bacterial infection.
Also fish can hang at the surface and heavy breath with bacterial infections.
http
/www.petsforum.com/cis-fishnet/afm/G29060.htm