Hi all

My plants are relatively healthy but now are starting to show signs of problems.

I put them on 12/12 lighting 6 days ago and fed them Dr Hornby's Big Bud at 1/4 strength. 0-10-40
Last night I was going to feed them again but checked my solution again and it was a 5.8- 6.0 PH. (PH was 6.8 at first feeding) so I adjusted it.
My plants are developing Leaf Curl,Brown Leaf Tips, and one plant has Yellow Spots on Leaves. The one with the spots had spider mites a while back and was treated with NEEM oil, as were the rest. The plant with the Discolored Leaf is a lighter green that the others, a bright green as apposed to a dark green.

Lighting is 12/12, 1000W HPS
Great air flow, leave closet open during light cycle with fan blowing in. (this resolved my heat issue)
Temp 80 deg.
Humidity is 30 %
Soil PH 6.5 - 7.0
Water as needed check soil 2in. down with finger.
Dreadscale Reviewed by Dreadscale on . Minor Problems at Moment Hi all My plants are relatively healthy but now are starting to show signs of problems. I put them on 12/12 lighting 6 days ago and fed them Dr Hornby's Big Bud at 1/4 strength. 0-10-40 Last night I was going to feed them again but checked my solution again and it was a 5.8- 6.0 PH. (PH was 6.8 at first feeding) so I adjusted it. My plants are developing Leaf Curl,Brown Leaf Tips, and one plant has Yellow Spots on Leaves. The one with the spots had spider mites a while back and was Rating: 5