you mentioned all this information about your lights but never mentioned how old they are....if they are very old about a year old they probably need to be replaced..........i have also noticed that you haven't mentioned anything about ur Alkalinity levels... as for my personal experience i once had problems with my corals dying and were my mh lights, changed them color was better and did better then my alkalinity was really low and now i have increased the levels to a more normalized level about a 3-4 rather than a 1 but still working on it..

Quote Originally Posted by jtdunham View Post
Standard Lights for Red Sea 34 gal: From the Users Manual
"two 55 watt T5 power compact flourescent bulbs with a high-polish, textured aluminum reflector.... The lighting provides 1 watt per liter of clear blue sky color (10,000K) with a 1:1 ratio to pure actinic blue (420nm wavelength peak)".

as for skimmer removing nutrients I do use Coral Vite once a week when I have corals. Tried Coral Vite more frequently but no help.