Not good
Did you try adding some Stress Coat to the water?
I wouldn't add anything to the tank atm.. just my suggestion.. up to you to take nick's suggestion or not..

Not good
Did you try adding some Stress Coat to the water?
Well it isn't looking good for this guy so far unfortunately. He made it through the night but spends most of the time laying down sideways on the bottom of the tank. The tank is bare, unlighted, and heated with an airstone. I also decided to add a little primafix in hopes that it might lower his stress levels. Not sure if he will pull through this. What a discouragement!
Perhaps a little confusion. Isn't it early spring in South america right now? Which would make a wild caught aro very young indeed.