When to move rockwool seedlings to dutch buckets

[gdgdad]

Stan, I’ve built an aeroponic Cloner as you suggested (see pics). Seems to work OK, all sprayers put out a nice pattern (i.e. 180 degrees each ). The 2” net pots appear to get sprayed from all sides. But…. I’m still stuck at the starting gate as far a starting from seed. I also acquired 2” Rockwool cubes and re-started seeds 10/2/18 (again, Heatmasters and Florida 91’s). So far 3 cubes have sprouted, tallest is 2 ½ tall (see pics). The tall ones looked leggy so I removed the clear cover and lowered the lights (light is on timer 6am to 12 pm). No true leaves yet. This is where / when I seem to have the most problems, any suggestions? See anything I’m doing wrong or not doing?

Thanks, Gary