There was no change in his condition using the recommended protocols for minocycline. I kept him in the hospital tank without treatment (other than daily water changes) for an additional two weeks and then treated with amoxicillin. After 4 days of amoxicillin his fins began to clear and were completely returned to normal by day 8.
Currently keeping: gastromyzon spp., hypergastromyzon humilis, pseudogastromyzon sp., sewellia spp., ambastaia sidthimunki, homaloptera spp., serpenticobitis octozona, Yaoshania pachychilus. As well as various catfish, loricarids, livebearers and tetras.