Hi Guys;

One of my Gold Barbs has recently developed a red growth on the side of his mouth. It's sort of a reddish whitish color on the right side of his mouth only. It is not present anywhere else on the fish.

He is still swimming, interacting and feeding but I have him quarantined to avoid infecting my tank.

Any ideas on whether this is a bacterial or fungal infection and the best method to treat it?

Thanks!

can you post a picture? it would help us to see it. Does it look like a sore thats in the skin or is it growing on the skin?

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90 gallon, 1 Iridescent shark, 2 Pleco, 3 Goldfish, 5 Cory cats, 2 Nerite snails
5 gallon hex, Blue Crowntail Betta, 1 nerite snail,