Thanks for your quick response.
The other fish in the tank seem to be free of black spots. Should I give them a FW dip too or should I leave them alone for now? Do you think I have to get all the fish out of the tank to quarantine them for a few weeks? Do I do this FW dip and put the fish back in the main tank?
I read somewhere on the internet that all fish must be taken out and put into a quarantine tank for a few weeks. That will allow for the rest of the parasites that are still in the main tank to die because there are no hosts for them.
Thanks in advance
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