do not drop 30", almost all of my tanks are that length (20L, 29, 30B). also, I too prefer the look of the 10k/7k older version, with some RGB added in. drop the moonlights, I dont use them at all, and replace with 7k or RGB for more par. i have 10 of your fixtures already, but like the monsteray/ray2 combo best. i also have your competitors lights (current + and buildmyLED) and really like what RGB's do color temp wise. i have been adding a coralife T5NO colormax to supplement the Finnex and it does wonders for plant growth and color.