Hello everyone. Its been a while since I have even been on this site (busy busy summer) and it is nice to be back. This question goes for a house that I am petsitting. My friend has a 250 gal (i believe) tank that currently houses two decent sized Oscars. My friend wants some bottom dwellers, and originally had an emerald cory in the bottom of the tank. Is there any sort of bottom dweller that would do better with the oscars than the cory (since it seems like he gets picked on a bit)