They were all relatively healthy before, but its been getting much worse.
All the older leaves are yellowing. Some have spots and burnt tips.
This is my grow journal, if it helps give more info.
http://forum.grasscity.com/grow-jour...0w-mh-hps.html
Temp ranges from 75-90
Humidity from 32-50%
18/6 under my 400w MH about 12 inches above the tallest plant top
Every other watering they get their dose of Pure Blend Pro Grow and a drop of superthrive mixed with a gallon of distilled. When they dont get nutes they get straight distilled.
If they need more then i will just add straight distilled until water fills up the drainage, and empty off/test the runoff.
Runoff pH was about 6.3-6.5 for the Big Bud #1 (second and third picture)
About 6.8-7.1 for the other plants - Unknown Stain(first picture), and a Northern Lights(last picture), Big Bud #2(fourth and fifth picture)
The Big bud #1 has yellowing and browning/crispy leaves with dark black spots on it on the older fan leaves but its getting worse. Its slightly over a foot tall, and the root ball is thick around the edges of the pot. Is it time to transplant? (8 weeks)
The NL has crispy somewhat burnt tips with yellowing on the older fan leaves.(8 weeks)
Unknown is still very healthy with only some burnt leaf tips on its oldest leaves(5 weeks)
Big Bud #2 has burnt and bright neon yellowing older fan leaves(5 weeks)
They need to be watered today, how can i fix them?
Thanks!