Sorry Mark, I know you've covered this topic but just what lighting are you using currently? I know you're using 250's but what ballast and supplemental lighting are you using?
Additionally, if you don't mind, what's your light schedule like?
Thanks again
My lighting is 4x2 50 watt 20k radiums ran by 2x SLS blue wave IIV's house in 4x LAmini's. The supplemental lighting is 2x 160watt Super actinic VHO's powered by a icecap 660 ballast.
I run my VHO's for 10 hours and my halides vary from 5-6 hours.
Thanks