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Metalhead88

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May 31, 2019
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I noticed when I got my red severum about 6 months ago, an indented mark near his gills. I thought that he had it on both sides so I didn't think anything of it....untill right now when I finally realized it was on only one side.
The mark has gotten bigger, I'd say it was proportional to his growth. He has tripled in size since I have gotten him. Take a look.
0216201650.jpg

90 gallon tank
0 ammonia
0 nitrite
10 nitrate
75% water change once a week.
Any thoughts? The spot in question is on the bottom portion near his gills. He's been happy and healthy since the day I got him.
 
probably a deformed gill cover from inbreeding.

Thanks for the input. I thought it may be a deformity of some sort. I'll keep an eye on this fish. I didn't think it was a common disease or something like that either.
 

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