lighting for 220 gal tank?
 

Hello;

I have a 125g reef right now with 3 x 250w iwasaki MH, 2 x 160w VHO 10k
and 2x 160w vho actinic. I'm thinking of going up to 220. I have a couple of
clams doing well in the present setup as well as a variety of soft and sps
corals. Am wondering if I substituted 400 wat MH's with the same setup if that
wold be suficient?

thanks

Bob