Just had a 2 year-old 13.5" ornate polypterus pass away today after being seemingly fine last night when feeding. I noticed it struggling to stay upright and barely breathing this morning. When he died a few hours later, there was a yellowish film coming out of his anus. Not sure if that's related, but I can't find much about what this film may have been.
Water parameters are all excellent and the other fish in the tank (polys, giraffe cats, 2 cichlids, flagtail) are all acting normal today.
Any thoughts on what may cause a fish to die so suddenly without visible external symptoms? Or what that yellow film stuff may have been?
Water parameters are all excellent and the other fish in the tank (polys, giraffe cats, 2 cichlids, flagtail) are all acting normal today.
Any thoughts on what may cause a fish to die so suddenly without visible external symptoms? Or what that yellow film stuff may have been?