Onus is on you to determine what will and will not work and the homework should have been done prior to the purchase. Having said that all fish are different and what works for me may not for you. If you have a proper tank setup that is mature, healthy and established fish, rock with enough hiding places, enough rock to forage, and yet more mature coral growth it could work.
Six lines are constantly moving. They forage until they go to sleep. So they get up and forage, then go about their day and forage, and just before they go to bed and after their adult beverage or night cap, guess what they do, forage. They move non stop. Hover. Stop. Look. Dart. Dash. Rinse and repeat. So rule number one is having an established and mature tank across the board top to bottom substrate to rock and rock to coral. You cannot have a similar looking fish that will eat the same food or compete for the same food. It just will not work.