I dont know if you'll get the spread you will like. On my 180gal 72x24x24 I ran 2-250w 12k's and had a dark spot in the middle and I also run 2- 72in 10k & antics.
I added a 250w 10k in the middle to brighten it up a bit.
I added a 250w 10k in the middle to brighten it up a bit.