I seperated 4 habaneros from one pellet once. Took a while, but I ran them under the sink for 5 mins and then untangled most of the roots. I only had to cut three. And damaging the roots doesn't cause stunted growth, I had one of the habs loose all of its roots, grew to the same size as the rest of them. (1.5 feet tall, but only because I have them in tiny pots to save room, if I put them in bigger pots they would grow again.) If you do have to kill one, keep the purple because I wanna see how that turns out