My new Monipora cap. is green with blue polyps. Since I got it, the edges have developed green algae growth and this is spreading towards the center. There are no polyps in these areas "infected" with the algae. My lighting consists of 2 250MH and 2 96W Fluorescent bulbs. The coral is about 8" beneath the surface and the lighting is about 5" above the water surface. How can I save this coral? I have trimmed the portion of the coral with algae and decreased the light penetration using additional screening. Does any one have any other suggestions (water parameters are all within accepted ranges)?