I have domino damsel that is showing signs of brook. As shown above he has white slimy mucus near his face. Opinions?
I had just gotten him about a 5 days ago along with 2 other damsels put into my 72 gal. The tank had been cycling for 2 and half weeks at the time of entry for the fish.
If it is brook, as I suspect, how should I treat him? Should I do anything to the tank to prevent the others from catching it?
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