I lost my peppered cory

A few days after I got my Albino.
He never seemed "right" when I got him home from petsmart, I tested my water "regularly" with a master
test kit reading 0
ammonia and Nitrates.
I Made Use of my TopFin 10 filter and threw a big Aquaclear sponge in it. So
is that WAY to much filtration for a ten gallon? Total of 230 g.p.h with the Pengiun 150 bio-wheel. Too much?
I'm considering getting an
upside down catfish would he be ok with 2 cory's 3 neon's and 3 zebras?
I know that option may be disliked but i really like upsidedwn catfish!