I just don't understand. I see so many beautiful tanks covered in purple but I just can't get it going. (I do have some, in darkest areas, and it does grow but hardley noticable). All parameters good, (including calcium and alk). Everything in the tank is thriving, from shrooms to xenia to a maxima clam to fish. 72gal, 4x96 PC's. Started B-ionic a week or two ago. Tried everything else. Example: Bought a leather coral last weekend. The rock it is on was 100% covered in deep purple cor. One week later it appears very light purple.. Is the amount of light a possibility? Not sure what other info you will need...Thanks.