i was at the local LFS today here on long island, New York (Country Critters for those who know it)and all of their many reef tanks run on PC lighting only 2 to 4 strips in the usual blue and white combos. Their tanks were thriving! Nicest tanks i have ever seen! Not a halide in sight and every hard, soft, clam, etc you could imagine....pink everywhere and everything looking amazing! He (the owner) stated halides were not necesssary, and now i am starting to believe him! Antone else ever been or heard of this store....or agree with this?