Hey Ted, glad you surfaced. I figured you'd been mugged by Father Christmas for being bad...or something.
Some of these photos are really beautiful, very fine resolution and nice depth of field...and the way you almost wrestled the color into submission is interesting. You have to balance the light, or try filters or something to get more normal colors.
Why don't you just use regular lights, or flash for pics, and turn off the sulfur bulb for a few minutes? As long as the plants are getting some sort of light it shouldn't risk a thing.