Ompok catfish infection?

[FatCatDoorMat]

After I reeleased a Mystus gulio in my main tank, everything seemed fine. I finished the copper treatment in the main tank and added a dewormer (albendazole). From the next day, all of my cats stopped eating. I thought it was due to the Mystus, who up to this point had recovered beautifully, regrowing fins and whiskers. I isolated the Mystus. Then did a PWC in the main tank and added acriflavine, but the condition of the Ompoks have continued to worsen. I've been doing daily WCs but the Ompoks haven't recovered. They show signs of Mild Finrot, cloudy eye, and curled barbels. I don't have a test kit rn but I feel this has progressed into a bacterial infection. Should I do salt baths or stuff like that? Should I continue with the acriflavine treatment?

[Viktor Jarikov]

Medicating should be considered only after all other troubleshooting comes up empty, first and foremost the water quality tests. I understand the timing argument, it is suspicious, but it doesn't eliminate the need for basic troubleshooting.

[RobinSm89]

I think that salt baths can help, maybe try them some more. I once had a similar situation, it helped me