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I did not use fertilizers and it's only 3 weeks old from seed so should not need any. There is no water under the pot. It's no probe, it's just a thermometer on a pencil ;). I'm using 150 MH lamp. This is probably the closest. I may have over done it with watering, and the runoff was a bit...

Hi, I desperately need help. My box is 50cm x 50 cm x 120 to the lamp. Lamp is in a cooled reflector, my temp. never rises above 28C (82F) and that is 5 cm beneath the reflector. The lowest temp. with lamp off is 20C (68F). I'm fighting with my humidity at 40%. Soil is this one (not mixed with...