Hi I've been using the G6 pros over a shallow 19" deep sps tank and basically I use all the blues at 100% and both whites to a max of 25% at overall 80% intensity. Only now some growth tips have appeared. Before at a lower overall intensity the corals grew but extremely slow. I'm not sure what to do with the whites for optimal growth and color in the corals. Especially the warm whites. Any experiences would be helpful....at 25% is that too high ? Not enough? I could do the WWC deal with whites on half the photo period and just blues for the second half. Not sure what to do with those