Sps like alot of light, so their final placent should be high where they will get alot of light. I would start them off low in your tank to acclamate them to your lighting. Then over the course of a month slowly move them up closer to the light till you have them in thier final resting place. Remember flow is important also and IMO you can't have too much flow . I have 12,000 gph flowing in my 220 and my SPS love it .