Columbian red and blue tetra tank mates?

I recently got 6 columbian red and blue tetras. I have looked online for info on their behavior and found a variety of answers. I put them in with 6 black skirt tetras, 6 serpae tetras, and @ 10 platies and swordtails. Is this a good combination? They do have plenty of room ( 100 gallon tank) and seem to be doing just fine. Do they get aggressive? Should I take any of the other fish out? Thanks for any help.