Question about Cory cats

I've noticed that at least in my tank they generally tend to school with their own particular size and color. I have some albino cories, some green, cories, some peppered cories and they occasionally all make one school, but generally stay segregated by color. That does confuse me a bit, since the green/albinos are the same species, and supposedly color blind. I don't know how they can tell which ones are green and which are albino.

Just make them all one species. It looks better too.

Keep corys in schools. I have small schools of peppered, and pandas. I have one lone little skunk cory that I am trying so hard to locate a few more for him to school with, I found him by accident at a petsmart and he was all alone and mislabeled, at least now he's with other corys. They do best and are most active in schools of the same kinds.

Get a min of 5 of each type if you get cories they do best in groups of 5 or more

You can put them with other corys but like everyone else said they do tend to stick to their own species when schooling

I have 8 pandas that school together a lot. You need to keep cories in groups of at least 5. In the wild they're with hundreds of their own species.