I recently got the green star polyps and eagle eye zoas. I have placed the green star polyps on the back of the tank. Will it be fine there? and the eagle eyes zoas, I have no idea where to place them, I have just placed them on the sand with the plug it came in. Can anyone tell me which will be the best placement for both of them. Also do let me know if I need more rocks adjacent to both these corals for them to expand?