My fish died suddenly last week.
I wanted to know what he was suffering from, so I took pictures and posted them on forums (including this thread), showed them to people working in specialized ''fish stores’’ - I even took my fish (when he was still alive) to one of the stores to get some help.
After reading this thread – and as one ‘’specialists’’ suggested it was tb – I was convinced that Fish TB was killing my fish.
I called many places, including the university veterinary dept, where they have a team specialized in fish and exotic pets…
You guys know a lot about fish diseases and some of you have even had your fish ‘autopsied’ to confirm it was fish tb , so I want to know you opinion on what their vet said:
I told him about all of the symptoms my fish had (the exact symptoms I’ve read about on this page):
- graphite gray tissue necropsy that spreads from the bottom of the fins upward to the body within hours
- sudden loss of mobility (one day he was fine, the next he was swimming sideways)
- death within 12-24 hours, occasionally as long as 36 hours ( my fish died in 36 hours)
I mentioned Fish TB and asked him if he thought it could be the cause of death.
His answer : I did not think it was fish tb at all.
He said that Fish tb is extremely rare in small aquariums like mine and most of the fishes suffering from the same symptoms are dying of bacterial infections – nothing else, not fish tb.
He said that many diseases could cause the symptoms I was describing, and more…if, for any reason, the fish’s immune system is compromised, a disease can quickly take over a fish’s entire body and kill him in a matter of hours.
Also, he said that the symptoms of fish tb are usually a loss of scales, loss of color, lesions, wasting, curved spines and that it does not always kill a fish quickly - in his opinion, mycobacterium can be present in a fish but not develop until the immune system is compromised, and it can take days.(like streptococcus in humans). This could explain why it was found when an autopsy was done on a fish.
So, is the mystery disease fish TB or could it be something else? If it is fish tb, why don’t we see curved spines, lesions and loss of scales? Do you know of another disease that can cause the same symptoms and kill a fish so quickly?