Emaciated and Not Eating?

[Drew Loika]

I have a Whitecloud that hasn't wanted to eat since I got him in May, he's stayed tiny and is now emaciated. One other like him (out of ten) has already passed. I also have 1 Kyathit Danio that's extremely emaciated with a second (out of ten) starting to look skinny. 

The rest of the tank is plump and boisterous, I've been overfeeding. I use location, different foods, and timing to make sure food is available to everyone. I've watched the emaciated fish ignore food repeatedly, often spitting out anything they do start to eat. Flake, pellet, wafer, dried, and frozen food all get ignored. All of it is from Aquarium Co-Op thus quality. 

I don't see any external signs of parasites, injury, or other distress. Weekly water changes, all parameters good, heavily planted high-tech tank. 

Any ideas on what I can do differently? 

Thank you! 

[Daniel]

It is very sad, but when a fish will not eat there isn't very much you can do. Sounds like you have done all the right things.

[yannachka]

have you tried live? you may have more luck and id try that as a last resort. 

[Drew Loika]

I have not, that's a larger time/effort estimate than I'm willing to make. 😞