[shev]

I advise against corys, they will probably get eaten when the oscar is big enough, and their horns will stick into the oscars throat suffocating the cory and soon killing the oscar. Thye should be fine with a 1 inch oscar, but the ocar will grow really fast, and can eat quite large fish for its size. a pictus will clean up but will also graze at the top when feeding the oscar, and it'd have to be pretty large.