I have been reef keeper for years now but never really dabbled in the SPS category... I set up a tank a while back to make it just an SPS tank and try to mimic some of the awesome tanks I have seen. I also knew that I didnt have the money or the know how to keep the 75 dollar frags at the LFS safe or at least if I bought one I didnt want to lose it to a noob act so... I went online and purchased a pack of acros. The acros came in half brown to brown.... My question is how long does it normally take to color them back up. 250w 14k MH Ni, Na, Po, 0 Alk 7.5 Cal 480 temp 78.8-80