. Its really hanging near the surface at a 45 degree angle. Not much I can do but wait... I'll definately isolate them tomorrow (if there's any left). How will I know when the rest of the tank is treated? There'l only be the cories and a betta in there after, and since there showing no symptoms.... Sigh, this really isn't fun, is it? Hopefully my parent won't notice the lack of fish, everytime a fish dies they get all annoyed with the shop, phone up and try and get a refund. Oh well. I'l carry on with this as best I can.