--The amount of light that a coral can maximize (i.e. use) is directly related to the flow that's going over it (not something I would have thought intuitive), more flow is better (although he didn't touch on "too mucH" .. i.e. ripping flesh off the coral)
--Let your flow go in the direction of the open water, don't try crazy ass bouncing off walls or rocks tricks it's very inefficient.
--The closer to a physical surface something is the less water flow you'll achieve, so try to keep powerheads away from walls if possible, closer to the surface translates to more velocity
--Gyres are cool.
--Jeremy still didn't win anything.