Im new to the Acropora game but I did my homework and just last night brought my phosphate under .1 and nitrates in between 1-5 ppm and with the kalkwasser system keeping my DKH & Calcium stable the polyps have been noticeably out further. I don’t have a fancy camera but on the very bottom edge it was completely white when I picked it up from the LFS last Sunday and now it’s all green. I’m not sure how fast these grow but I’m gonna wait a good month to see how it does before I add another Acro , but don’t get me wrong cause the Acro addiction has began 
