15w fluoro at about 1 ft away is not sufficient for a seedling, just look at my pic. What about heat, would that also cause stretching? This one is just no good, I'm new to rockwool so...
using a tray, rockwool, and prop dome on top of heating pad so let me know if I should not use the heat pad or something.
using a tray, rockwool, and prop dome on top of heating pad so let me know if I should not use the heat pad or something.