Paralyzed Cory - Please help !

Is it breathing heavy? Was it just added to the tank?

How many other Bronze Corys do you have? Any of the other exhibiting this bahvior?

What/when was your last addition to the tank?

Water Parameters please? ...and what/when was you last maintenance?

Was he introduced during into the tank when it was setup? (ie during the cycle)

What do you feed your Corys?

A couple of things, from my own experience (the Qs above hint to these), but I have had a few Corys become very Lethargic and seem to 'rest' nearly on their side (more like at a 45 degree angle) and then swim off a short distance and rest again for several minutes.

What I have found that in each of my cases it was either when:
- I was cycling my 1st tank (Corys do very poorly)
- Do not provide them with enough playmates, such as 3-4+ (sounds weird, but beleive me it's true that Corys need companions to survive long-term IME)
- Lack of shelter/cover (ie. too stressed)
- Illness, or rather treating other fish for an illness that stressed the Cory too much...
- or, Poor nutrition.

I have lost 3 fish from exhibting similar symptoms, and have recovered 4...
By correcting the above, the 4 that recovered I still have today, and has casused me to become an avid Cory-Lover!

water parameters? tank size? tankmates? plants/decor? without this info, it's hard to say what's wrong with it.