You are a bit ahead of schedule, aren't you? Its only February and in most
places, you are long way off before it is safe to put plants outdoors.

What plants are you growing from seeds anyway?

You should try to have your plants as close to the lights as possible
without burning them.

What length day are the lights set for?

If you use a light meter, you will see that the light intensity emanating
from plant lights is far less than what you would get outdoors or in a
greenhouse. Its even less than you would get in a shaded locality outdoors.

Another problem with growing under artificial lights is poor air circulation
and too high humidity. That can cause the seedlings to come up spindly and
too weak to survive for long. You need to get a small fan and set it on a
low setting just to move the air around.

"Mark" wrote in message
oups.com...
I'm curious if I'm doing my lighting right for my seedlings. I have
one of the Professional Jiffy Greenhouse 72 peat pellet seed starting
kits, and I'm starting my seeds for my garden.

Anyway, I have two 18" flourescent fixtures- one with a GE Plant &
Aquarium tube, and one with a GE Chroma 50 tube. I set the
fixtures/tubes directly on the plastic greenhouse top, and rotate them
each day, so that the plants get an even mix of Chroma 50 and Plant &
Aquarium light.

The vast majority of the seeds sprouted quick, and are growing madly-
most of them have their cotyledon leaves & stems almost to the top of
the plastic greenhouse top- they look kind of spindly right now. No
true leaves have shown up yet.

Is this a problem, or is it common for the cotyledon leaves to shoot up
really high and quick? I read that lack of light will cause leggy
plants, but I'm not short of light with my setup, am I?