They're (impossible to tell gender until they quite literally start breeding) pushing past 2 inches! The patterns are coming in on the dorsal and tail especially right now! They will keep growing up to ~10 or so inches, so a long road ahead! They'll be the tank boss when they're bigger but for now that's left to the Angelfish and Electric Blue Acara :)

If you're curious what an adult looks like, check out this great video by PrimeTime Aquatics (channel definitely recommended)