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Hi Folks,

We have a neon tetra it has a large ulceration whiteish in clour at the base of his dorsal fin, this has only appeared in the last 24hrs but it doesnt seem to be distressed, started treatment for white spot but can any one tell me any advise on this, or if it is white spot

Thanks

clinton1621

This link may help.... your neon has one of the main symptoms.... although I'm not saying thats definitely what it is.

Columnaris.... need a little advice