So mine seems to be growing alright. I have gone from 1 polyps to about 5 in 3 months. The oldest polyps is about 4 to 5 times bigger then the green button polyps right next to it. Now I have a question is there a way to get more white in it. Mine barley have any white at. I have them on the sand bed under 150 MH 14K. Do they like more light?