I recently started with them jan 2nd. Currently run them without a controller and have 2 360WE on a 70 gallon 3 foot tank(21 inch deep) with sps. Ran them a week at lowest setting to turn on for eight hours, then after a week bumped them to 50% and bleached some of my higher sps in a day. Knocked them down to 30% for two weeks and started getting a lot of brown out so jumped them too 80% and they coloring up and getting noticeable growth again. If i did it again id go 15% for a week, 30% for a week, 50% for a week, and then bumb it to 75 or 80.