Been treating my three goldfish for internal parasites (they were lethargic and their poo was white) with apI general cure. I've dosed two pouches into the tank (due to do it again today) and have been mixing it in their food. I have noticed a slight raise in energy and they have been popping a lot, their poo has gone from white to red. Does that mean they're recovering? They're only half way through their first treatment so I don't know what to expect. Is there anything more I can do?