johnmackay70;736019 wrote: I guess I am a bit confused on light spectrum and reef tanks...back in the 90's (yes I am old and ran reef tanks back then), we were lucky to run 6500 MH + a couple actinics (of sourse we were not keeping much in the way of SPS).
I am getting back in and have almost everything I need to start setting up my 40 breeder display...
I have 4 x 36" T5 (plan on running 2 blues + 2 actinincs) I also have 2 outdoor LED flood lights (CREE diodes in them) for a total of about 60 watts of 6500k LED (I got them basically free).
I have been told that I am making a mistake by running this setup. I plan on running a mixed tank Softies, LPS and a few SPS. And I do plan on running the LED floods (man they are bright) to see how they do.
Are you telling me that I am not making a mistake? I thnk with the amount of blue I will have over the tank, it will still make the coral colors pop. Am I wrong (remember, I am a child of 1990s reefing when everything looked brown

)
Do people shy away from the 6500k color temp for fear of algae?
What is the deal?