Thanks for the help. After looking at the corys you have suggested I'm going back and forth between C. bilineatus and C. napoensis.

They sure look like this bilineatus.

Bought these at LFS. They had them listed as Corydoras minimus. I don't think there is such a cory. Looks like it may be Corydoras nanus but I'm not too sure. They are 2.5cm long. Any ideas?

Thanks.