How much light for a 150

[banditpowdercoat]

Well, time has come for me to think about the lighting for my 150g. I have 2 DE Pendants and a 3rd ballasts. Electronic Coralife's. Plus, a Tar ballast 250 SE No case for the 250W ballast or shade. It came from a industrial light.

I have the 3 DE ballasts mounted under the stand allready, But will they be enough? I am going to have to buy reflelectors anyways. Should I put the 250W SE Tar in the middle and the 150 DE on the sides? Or all 3 150's?

OR, bite the bullet and get a 250W DE for the middle and sell one DE and the SE?

Not planning on the really tricky SPS in the tank either. Monti's, Birdsnest most likely. and Favites and Zoa's of corse