Are there any acropora or any sps that can handle high flow? I think most montis are ok but was wondering if anyone has had success with acoros. I have a shelf about 6-8 inches from an mp40. I tried a green slimmer there and it melted slowly so I never tried another piece in that spot. I'd love to use that space. Feel free to add whatever coral you think would be good in front of a powerhead. Thanks in advance.