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Blisters on Pleco


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I noticed my gold nugget Pleco has these strange blister looking things on it near its tail. I see a total of 4 of these on him currently. 

What is this and what can I do to treat it?



pH: 7.0

GH: 150ppm

KH: 80ppm

Nitrate: 20ppm

Nitrite: 0

Ammonia: 0

Temperature: 76 F


Edited by Logangus119
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On 4/25/2023 at 11:17 PM, Logangus119 said:


I just bought this Pleco on Saturday. I didn’t notice the lumps on him but I could have missed them. I noticed the lumps on Monday. 
I am about to separate him into his own 10g and treat with aquarium salt and go from there. 

I lower dose of aquarium salt 1 table spoon for 3 gallons if the lump are fluid filled the salt will help reduce the fluid buildup I wouldn't go above that level of salt as plecos are more sensitive to salt

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