Hey all One of my female CPDs has stopped eating and has recently gotten quite thin and lethargic. I've noticed one of the males making white stringy poos too, although he still eats and is active. I've just gone through one round of General Cure (2 doses with 48 hours in between, with another 48 hours after the 2 dose before adding back my purigen and changing the water) but they didn't seem to respond well to the medication at all. I'm considering praziquantel (we don't have PraziPro in my country but we do have an equivalent which have worked for local aquarists) but GC already has prazi in it so i'm not sure if I should bother with that. Tank has been running for about 4 months now, dimensions are 60*34*30 cm. I have 6 ember tetras, 5 CPDs, 1 honey gourami and 4 cory sterbai. It is pretty heavily stocked. Other than the 2 CPDs I mentioned above none of the other fish are showing any symptoms. They get >50% WC every week. Parameters before WC are 0, 0, and either 10 or 20 (the colours are so close that I can't really tell). I'm thinking of increasing my WC frequency for a few weeks so that they have nice, clean water but I'm wondering if I should put the female out of her misery. I would really appreciate advice as to what I should do next.