First grow (take 2)

Started in paper towel on saucer under a bowl, placed on a heat mat at 81 degrees f. Once the tap roots were 2", placed in dry (mistake) rockwool with a channel cut in it. That was put into a 2" net cup with rockwool pieces to block light in gaps. Run in low pressure aeroponic 5 gal bucket with 4 90* micro sprayers , circulating timer set on 1 minute of 20 minutes. Lights on 18:6 4am-10pm