all caribe
there more aggressive and less shy and shiddish and if you take good care of the water quality they have amazing colour
only bad thing is they cost more and are less avalable
I like terns myself. And piraya but would never mix a shoal or keep a group of them.
Between the two of them IDK.. Caribe are more expensive but supposedly more aggressive but more expensive to lose while reds are cheaper and more abundant and if and when you lose one it's less $$ lost.