I had deep red coraline growing w/ Trichromatic bulbs but the lighting was too yellow for me. I've switched to a 10k and a actinic bulb in my dual strip. I have rearranged the rock as well so I'll need to wait some time before any more grows. It took about a year for the red coraline to start to grow on the rocks before I moved them.
What exactly is in purple up?
My calcium is at 380 ppm in that tank. In my reef I keep it at 420 ppm. That always helps.