Bent Zebra Danio Spine/Sick?

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thunderwaved

Aquarium Advice Apprentice
Joined
Jul 26, 2010
Messages
42
So I have this Zebra Danio with a bent spine. Its curved with the tip of the curve facing up. I don't know if it is TB, so I isolated him from the rest of the tank. I put some Melafix in, along with some Sea Salt to reduce stress.

It has been a week now, he usually just sits at the bottom of the tank. Before I isolated him, floating in the water, every few seconds he would push himself foward. I don't know if he was having some trouble, but I knew something was definitely wrong with him, it looked like he was very weak. I don't think it is swim bladder related.

My other Danio also looked very weak, however, he died because I overdosed Melafix. :(

Right now, his fins are like spread apart, laying at the bottom of the tank.

Can anybody diagnose?

Ammonia, Nitrites, Nitrates are fine.
 
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