This is a very polite and positive minded way of saying keep an eye on your clarki's as they mature, I think clarki's and maroons top the chart for being territorial, and could one day whip on those picasso's and possibly others, but perhaps confusion will work in your favor in that mix, but just be forewarned, when they mature, especially when/if they spawn, it can be a jekyl and hyde transformation overnight, and often too late when you discover this to pull the weaker clowns, and my money would be on those clarki's being the victor.I sincerely hope it keeps working out for you. The arrival of sexual maturity will be the biggest challenge... well, and time of course. Best of luck with it.
It does like nice as is right now though, also wish good luck!