[jeffkrol]

You might look up the actual bulbs you had (and still have one of) and see what sort of spectrum they have. 10,000 K is decidedly toward the blue to our eyes. Probably missing a fair amount of the reds that plants need.

Regardless of white temp... most flour. lights are just RGB phosphors anyways...

http://www.lamptech.co.uk/Documents/FL Phosphors.htm

Selective additions create "colored"...

 

[jeffkrol]

I do like the blue effect the actinic provides oh and one more question whats chlorophill a.

Major photon capturing plant pigment..

Think of it as "catching" energy to use it downstream to build things with..
That along w/ CO2.. when combined, produce sugars and building blocks for growth.. "waste" product is Oxygen..

This is the "daylight" portion of growth..

http://www.biology4kids.com/files/plants_photosynthesis.html