My experience has been that poylps will adjust to whatever the lighting situation is and adapt to it...within reason. You probably couldn't keep them happy under NO
lights, but they should do fine under the lighting you have. I maintain a 180 gal
tank with 640w of VHO
. It has zoanthid colonies on the top of the rock and some at the very bottom. Some of them are actually growing out from under shaded ledges. They are all doing well. I've had new colonies that took two weeks to open up. Zoos are tough and very adaptable. I'd put them where I wanted them and give them time to get used to it...IMO
, they'll be fine.