Synodontis notatus Help! Has exploded wart?

chevyII

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Jun 10, 2003
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My catfish has always had this bump wart looking thing near his top fin. It has been like this for a few months. tonight I noticed it seems to has burt, it has kind of a yoke thing coming out of it, Puss I would say, wit a little bit a blood inside this sack. What do I do? what is it?
 
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