That's what I may try to do...I usually run a combo of 10K and 20K with the thought being 10K=growth and 20K=color. Not sure if that's right or not, but it had worked well for me before with 10K Ushios and 20K radiums, so that may be what I end up going back to.<a href=showthread.php?s=&postid=7847678#post7847678 target=_blank>Originally posted</a> by ricka
FYI, next time I plan on purchasing the 12K bulbs. I like the 10K but I really liked the blue that I saw when I had different color bulbs.
--Rick