Hey all, AGAIN. My seedlings are almost 3 weeks old. Some doing better than others (helmet heads) An my question now is how often do ya'll water? As my set up is light on timer and fan on same timer. Some where between 16-17 hours a day "on". An apparently even with cutting back on watering I'm still overwatering. As now I'm fighting a slimy mold type on top of the seedlings soil. An still getting some yellowing of leaf tips. Would provide pics but used a toothpick last night to aerate the surface. An where it's coming back is slightly visible. Just hoping to keep them going. They've lasted till now! Thanks again for all the help.