Why do my fish get really skinny?

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corrado33

Aquarium Advice Freak
Joined
Feb 25, 2010
Messages
478
Hey guys, I recently had 2 danios and a bloodfin die. All three of them got REALLY skinny. They'd eat just fine, and they were all very active. I just woke up one day and found the to danios dead sucked into the filter, and one day the bloodfin was just floating, so I know they didn't get sucked into the filter and died there.

What's up with the fish?

My first thought is some kind of parasite. The rest of my fish are healthy though. The rest of the bloodfins are big and plump(healthy). Any ideas?

And no, no pics. It's impossible to take pics of those little buggers.

EDIT: Oh and when the bloodfin died, he was missing an eyeball? He was fine before I left for my run, and when I came back I found him like that? I kinda felt bad and I hope he wasn't picked at when he was alive, but how was I to know? He was ALWAYS skinny.

Stocking:

Some bloodfins, danios, guppys, and a female betta. (And 3 nerites and a couple amanos)
 
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