Drfu, if your objective is to grow corals, I would concentrate only on keeping your water clean and chemicals balanced.
You have corals from one spectrum to the other. By that, I mean that you have corals that thrive in a low sediment environment and ones that thrive in a high sediment environment. Not all corals require the same conditions.
Your devils hand is going to secrete a waxy substance that helps keep it's surface clean. That waxy substance will irritate your SPS corals.
You have corals that require high water flow and corals that require low water flow.
Your tank is not big enough to create both environments effectively.
What have you read so far on the subject of coral feeding?
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Mitch
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