I rescued a Betta fish from Petco, I didn’t test the water (in the cup) but I’m assuming the water quality was really bad. And he was clearly overbred, so not off to a great start after about a week or two in my planted cycled 10 gallon, he was doing better!

But then a bump started, possibly a tumor, from there, he caught pop eye and rot, I attempted to switch him to a hospital tank and medicate him thinking I shouldn’t put an anabiotic in his main tank in fear of crashing it, but I have ammonia in my tapwater and it didn’t go very well. From there, I tried tannins and other natural remedies. Eventually, I discovered you can actually use kenaplex in a main tank without crashing it. So I did a full course of treatments. No improvements.

I decided it was time to put him down.

My problem is I can’t figure out whether it’s microbacterium (fish tuberculosis) or his immune system was weakened by the tumor and he wasn’t able to heal.

This tank previously belonged to a different Betta fish I had who died of swimbadder problems at the age of 2. I heard that is a symptom of fish tuberculosis, but during the time that I had her, I didn’t know how to properly test my levels so she could’ve just had gotten swim bladder problems from poor water quality.

I have my eye on a fish on Facebook marketplace I’d like to rescue, but I don’t wanna risk the fish by putting it in a tank with the tuberculosis. I’m just trying to figure out what’s going on in my tank, any help is appreciated:)

Posted by Goummy_1

1 Comment

  1. Plutonium239Mixer on

    If it is fish TB and you have nothing else in the tank other than the betta fish, you need to break the tank down and sterilize it with bleach. Also wear gloves, fish TB can infect humans and cause a skin infection.

    Basically you’ll need to completely start over.

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