As soon as mine pop up I move them under 40 watt fluorescents.I leave the ungerminated on the heat mat.

john

I would also like to know what you pot up to after they sprout.
I was planning on using 9oz cups next.

I go in smaller steps to save space-besides a couple hundred peppers I will have a lot of tomatoes, eggplant, herbs, flowers,bok choy, cucumbers, and eventually squash, etc.

I germinate in a 200 cell tray--one seed per cell so it's easy to move with little disturbance of the new seedling.
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Move them to a 72 cell deep tray under lights

Then into a 32 cell deep tray

The 32 cell deep trays give me a seedling with a nice size root ball

Then into 3.5" pots which is usually big enough till I put them outside in 12"pots

Thanks for your input..... Okay got some work to do tonight, move popped seeds into their own small container and get them under a flor. light source.