My corys have fin rot, which I am currently treating them for. I know that it is bad but isn’t supposed to be deadly if treated. However, one of my corys (as of yesterday) got super lethargic (stopped eating, doesn’t move much) and started losing color rapidly as well.
Ah, sorry about the terribly late (20 days late **** what have I done with my life) reply. All of my sterbais have died, unfortunately. I’m not quite sure what caused it. And no, I don’t have pictures.