Worm or super poo?

[Mito]

I think it's a worm but what do I treat it with? This is the third time over the past few days it's appeared. No other fish is affected.

[plankton]

Looks like poo to me, but it could point to internal parasite, depending on what you've been feeding, and if it is that white.....

[Mito]

Fed frozen, bloodworm, daphnia, brine shrimp mix with the occasional dried food. Fed daily with a weekly starve day. They share the tank with corys.

[plankton]

Did you feed that mix before this happened?
How is it today?

[Mito]

Yes that is their normal food. I think it now could be over indulgence as there's no poo today. It's the only female in a group of five. I had 12 but they were very short lived, no deaths for over 6 months now and these seem to be enjoying life.