Hi! I have a diamond tetra that has one popeye and I treated it but now it’s back. She was in a 15 gallon tank with another female diamond tetra as temporary housing until my 45 was ready for more fish. It happened after I moved her and the other fish didn’t get sick. She’s been very active and eating well. I put her in a 10 gallon hospital tank with her tankmate to be treated. I treated with kanaplex as directed for 3 doses but had to do a water change after the treatment because it stressed them out. The swelling in her eye went down but I could see it was damaged. I waited 3 days to make sure they were both ok then moved her to the 45 with her tankmate. I was told I could add 5 at a time now that it was cycled and stabled with resulted in a bad bacterial bloom so I moved the 3 cories, changed the water and added stability. The tank is fine now but she has popeye in just that one eye again. My hospital tank is occupied with new fish I’m quarantining so I left her in the 45 and last night I dosed with paragaurd but I’m wondering if I’m doing the right thing.