I've had three fish die in the last five days and I don't know what the cause was. All my levels test out well and I couldn't really see any outward illness on the fish before they died.
It seemed like each fish became ill and died within a 24 hour period. They would swim less and less and then they would settle to the bottom and die.
The other fish seemed totally healthy while the others died. I noticed one of my tiger barbs has a thin white string of something at its anus... it could be just poop that's not falling away, but I can't be sure. It is acting normal.
What do you think it could be?
It seemed like each fish became ill and died within a 24 hour period. They would swim less and less and then they would settle to the bottom and die.
The other fish seemed totally healthy while the others died. I noticed one of my tiger barbs has a thin white string of something at its anus... it could be just poop that's not falling away, but I can't be sure. It is acting normal.
What do you think it could be?
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