well what ive noticed thus far after toying with placement is that they turn green under lesser light, and more purple and white skirts under high light (200 ish par). the only thing with flow that ive noticed is that low flow gives them plumper skirts while higher flow made the skirts longer and thinner. I havent really checked the area of matting on my frag, but i'm leaving it alone hoping the damn thing grows haha. I have no idea what the melt was caused by, it may have been because it was just a single polyp and gary himself said that he was struggling with the single polyps too, which is why i requested the four polyp one