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159 Posts
Discussion Starter · #1 ·
Hi guys,

bought a gem tang for my reef tank today and was perfectly fine about 2hrs ago but when I’ve come back I’ve noticed a white blotch on one side of his body beneath his gills. It’s a large patch of white but it’s really difficult to photograph.

it looks like there’s a small pimple sort of thing in the middle of the white patch and it’s almost like he’s been stung by something. I don’t have any urchins but I do have a BTA. Could it be this?

Really strange. Any help appreciated.


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