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Help with diagnosing sunset thick lip gourami


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Jun 21, 2019
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Hello all! This is my first post on this forum. I need help with my sunset thick lip gourami!
A week and a half or so ago I bought two male sunset thick lip gouramis and a rubber lip pleco from my LFS for my 20 gallon. I always read about keeping a pair of dwarf gouramis together so I thought a pair would be nice. However, this was a big mistake. I noticed right away one gourami was always more aggressive than the other male, so I moved the aggressive one to my 10 gallon, and moved the 5 cherry barbs in my 10 gallon tank to my 20 gallon.
Interestingly enough, the aggressive gourami has the injury! I noticed this white lump on its cheek a few days ago while it was still in the 20 gal prior to the move to the 10 gallon. As if today, behavior is still normal- no erratic swimming, still eating. Ammonia, nitrites, and nitrates in both tanks are the same with 0,0, and 20 ppm. pH in 20 gallon is 6 (I have a large piece of driftwood in it) and in the 10 gallon pH is 7.6 (I have a sieryu stone aquascape setup). 10 gallon has been running since June 2017, and the 20 gallon has been running since December 2017. 20 gallon stocking as of today is: 1 rubber lip pleco, 1 sunset thick lip gourami, 5 cherry barbs
10 gallon stocking: 1 sunset thick lip gourami, 1 otocinclus, a few ghost shrimp
Attached are pics of the gourami in my 10 gal, and a top view I took while temp acclimating the gourami to the 10 gal.
Thanks for any help!



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