[jmadison]

I agree on the forgoing feeding coral and nem for the time being. They are photosyhthetic beings and whether or not you are target feeding them they are still getting food from the water column also.

I read somewhere once(and I don't have the citing for it I apologize) That most nuisance algae needed long sustained photoperiods to photosynthesize and that corals are fine with intermittent light. So I have always had an hour and a half of no light in the middle of my photoperiod with great growth and low algal growth. Cyano is a bacteria but this could also hold true to it.

I am assuming your bulbs were new 6 months ago upon starting this tank? What spectrums etc? I think it's too early to tell if your new photoperiod has helped but I'd shave another hour off of both times.

I am STILL waiting for your response to your TDS readings on the RO/DI water....