The Tank After Fish Tb

mellowserra

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I'm so frustrated, I've culled nearly all of my mollies at once. I have them in two tanks, one brackish and one fresh.

First one went a few weeks ago with a malfunctioning swimbladder and a twisted spine. Weeks before that there was one that actually wasted away, I attributed it to age and thought nothing more about it.

In my fresh water tank another one had been wasting, and then I noticed that three of them were just beginning to pinecone on their ventral side. One has lost part of his tail (the one wasting), and it didn't look like anyone took a bite out of it nor was it finrot. I immediately checked my water stats, nitrate ~5, nitrite=0, ammonia=0, I do water changes (and vac!) once or twice a week, so I didn't think there would be a problem there.

On the brackish side, one with a red "spot" as big as a scale or two on its side, and one appearing to have the beginnings of swimbladder problems.

The ones remaining are all in the brackish tank by themselves, I am just waiting to see more symptoms on them. My biggest worry is if my carnivorous oddballs and catfish will be affected. I recall reading that carnivorous fish *may* have a natural immunity to other diseased fish, since this is part of their natural diet. (None of the infected fish were eaten, by the way.)

So what happens after all of this? I am going to keep watching, I have the feeling my other fish will be OK though. For those of you who have had to deal with this, what have your experiences been afterwards and in the long run? Have you been able to reuse infected tanks without incident? Have you been able too add fish later? I am worried to add any more fish since my big tank is obviously infected, and I had plans to separate the oddballs in the big tank into separate biotope setups later on.

I have read through MANY posts about this topic in TFF, and I have read through quite a bit elsewhere, not to be rude but please just post from your experiences or someone's that you know, thanks.
 
The only experience I've had with it was a betta in a divided tank who had TB. I'm not sure if the others that were in the tank are infected or not; they have no symptoms but it sometimes takes a while to show. I didn't want to take any chances, so when the sick fish died I put the remaining fish in individual containers, nuked the tank with boiling water and bleach, changed the substrate completely, and started over. The fish that were in that tank, no matter how healthy they look, still have completely separate tank maintenance items such as nets so nothing of theirs comes into contact with any of my other healthy fish. I think that's the only way to be absolutely certain it can never spread...
 
I have had TB spread from fish to fish before. I never tore down my tank and totally cleaned it, but i did treat the entire tank with antibiotics, and have waited a three months after the last suspected case of TB to begin re-stocking the tank. I'm hoping that it is now eliminated, and the surviving fish seem healthy/plump
 
I have had TB spread from fish to fish before. I never tore down my tank and totally cleaned it, but i did treat the entire tank with antibiotics, and have waited a three months after the last suspected case of TB to begin re-stocking the tank. I'm hoping that it is now eliminated, and the surviving fish seem healthy/plump
Were what kind of fish did you have that caught it? I'm a little worried now for a group of Congo Tetras and a lone SAE, since these guys belong to groups most susceptible. Are there any cases of carnivorous fish having TB? (Now going to go searching...)
 
Are there any cases of carnivorous fish having TB? (Now going to go searching...)
A couple of my bettas had it and they are carnivores, but they are primarily insectivores rather than piscivores. Angelfish and pike-perch are susceptible, so I doubt that all piscivores have an immunity, if infact any do.
 

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