I agree with DJ and will go a bit further - More nassarius snails (the burrowers) will help reduce algae's ability to settle on a sand bed that they are stirring up. And more hermits to clean the rocks, as DJ suggested.
And more flow, as he suggested, seems to always help, but I'll go as far as to recommend the Koralia 2 - great flow, non-linear (so it won't kill a coral with a single jet in one place), great mounting with an outside magnet, reasonable price. I love the Koralias! (Yes, the 2 is pretty heavy flow, but you aren't keeping seahorses in here, are you? Then lots of flow is good. You ever been on a reef? Crazy water movement!)
And on the light issue - How would you like to have the sun come on and go off twice every day? Yeah, don't do it. I would go to a shorter photoperiod until the critters really get ahold of the issue. I recommend 8 hours as a rule. People usually want to go 12, but it just usually doesn't work well that way. Ten should be okay once everything is well stabilized, but I would try to adjust my expectations down to 8 to keep the tank happier.
