A few years ago purchased a group of 7 neon tetra from a Petsmart. The only tankmates were 3 Banjo Catfish. After a year started to lose neons and eventually ended up with one that survived for another year. The Banjo Catfish weren't affected by any neon disease. My Banjo Catfish are over 7 years old. I would just wait it out like you stated. @Fishoutawater