what is that mean radar range?
temp is 25 on tops, humidity is 45, before was 30
i mixed 1/4 worm castings and 1/4 perlite

should i go lower with lamp, if temp is not higher than 25 on top of plants?
thank u
begbie5 Reviewed by begbie5 on . black spot, shadow Hi to everybody My name is Dan i have a problem with my 3 week old plants. I grow them under 600hps, 12inch from a lamp. I had a small deficiency of N few days ago, but that problem was sorted. Ph of soil is 7, water between 6-7 (do my best to reach 6.5). there was a problem with humidity so started spraying leaves with water for a night. I did it every night and started 3 days ago. I sprayed the well with a water. Today morning one plant got some black shadows/spots on bottom leaves. Rating: 5