Goldfish red lump

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psyche

AC Members
Jul 16, 2009
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Today my goldfish was bottom sitting and I see he has what looks like a red pustule with a short white feature in the middle. It looks nasty.

What could this be?spots-spot.jpg

He is in a stable 26 gallon tank and I check him out most days so this must have emerged in no more than a few days.

spots-spot.jpg
 

psyche

AC Members
Jul 16, 2009
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spot.JPGNow seeing some ataxia and a bit of negative buoyancy, right circling. But intermittently active.

spot.JPG
 

Jannika

MTS Survivor
Mar 17, 2010
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N. California
Red lesions usually indicate a systemic bacterial infection. Could be other organs are affected which would account for the loss of coordination and buoyancy issues. If he's still eating I would try a broad spectrum antibiotic in his feed. Good luck.
 

psyche

AC Members
Jul 16, 2009
554
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Still working on this. Tried some anti-bacterial feed but he is anorexic so not sure how much is getting eaten

BTW water params: ph 7.5, Ammonia 0, Nitrite 0, Nitrate 40. I am thinking of getting a hardness test just in case that is an issue.
 
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