My copperband eats mysis readily but no brine which gets spit back out, loves black and white worms, small earth worms, won't touch mussels or clams, frozen bits or in the shell. But it does this very special thing when there's aiptaisa to be eaten. It extends all its spiny top fins up and freezes right before an instant lunge. My guess is this helps it strike faster against the quick withdraw of the anemone though even when I drop one in it hits it the same way while its floating around helpless. Anyhow, I've got them in my fuge growing and in my smaller 55 gallon so I can scrape them periodically and drop them in, but I was wondering what I could do to encourage the growth of aiptasia in a separate system, as the worms are a pain, and I feel like the aiptasia is what these fish are meant to be eating.