Nice! Mine are 2.5 inches at the most, going to take ages for my lot to get that big!
Oh how I love clown loach, mine give me endless enjoyment. Yours are great examples, large healthy and happy in a great setup!

Do you remember if the pelvic fins on your large loaches were red only when they were young? If you look at one of your new loaches the pelvic fin is totally red. I am curious if the pelvic fin changes color as they grow.