>>2576592>80 corn seeds in a cell tray right now.Dang that's alot! I think you'll be fine with the volume, I've even grown corn in dixie cups.
>I think I will keep them indoors for 3-4 weeks and then plant outside.They need to be outside for awhile once they sprout. If they look/feel soft, but are a few inches tall, they might survive transplanting, but won't grow past a foot or two high. I don't think using fans and UV lights will be good enough.
Pic related, It's a poor man's setup, but I can fit about 80 square nursery pots in a transparent plastic container with holes drilled in the bottom for drainage. I prop up the lids with tent spikes for ventilation, weigh it down with a bottle of water to keep the lid from blowing off and to deter those damn critters. Or instead of propping up the lid, I'll offset the lid by some angle so the box isn't closed all the way. If it's not too cold/wet I'll leave everything outside, even at night. Just throwing out ideas as to what you might want to do with your cell tray once the corn starts to sprout and you start moving things outside.