Polyps usually extend way out when they don't get enough light. Those are nice and chunky. Maybe look at some of the palys that come from Hawaii. I've seen more white in those types then others. How long ago did you get them?
Thanks for responding! I think the ones in the link are a little more flashy, but along the Hawaiian and people eater line is what I was thinking as well.
I think the white velvets are the closest I've been able to see.