Rummy

I like my nose Tetras rummy and think the addition of a school of cardinals in my tank. However, I only do this if we are separated into two schools and not mix. Has anyone had experience with this?

I have the same thing in my tank staff and these two groups are large schools of fish mixed in a tank. They school separately. Mines in the schools on opposite sides of my tank so that is really nice too!

There is some mixing with food, but must be provided (all fish for him LOL)

They school separately, because they are different species.