leaf color

Hi anyone can help me please what my plants problem ? Im use 300 watt cfl there is 25C in grow room maybe max 28C my plant 42 days old im give plagron pk 13-14 . First the bottom leaves start turn yellow where no light . But some day ago everywhere leaves turning barely yellow from the edge. And...

Hey everyone, have a potentially unique situation happening that seems to be lighting related, and trying to sort out what’s going on as I’m more experienced with HPS than LED. The following pics are of a SINGLE RDWC plant - The is one plant running off the same reservoir. You’ll notice a...

So im new to the forum, i specifically googled "best marijuana growing forum" just so i could reach out for some help and advice, as well as to read up cause thats what ive done up until this point. Just a bit about my setup bottom up, running hydroponic setup. Drain and fill. Its small only...

After flushing a couple of times, mysterious nutrient deficiency continues.

it\'s about three days that I\'ve changed the light to 12/12 and now half of one of the leave\'s color is changing to pale green. also, top leaves are all pale green...can anyone tell me what it is and what should I do?!

hello dear freindz :) first grow from unknown strains-day 14 Strain —unknown #of Plants — 4 Grow Type - Soil Grow Stage - Vegetative Bucket Size — 1 galo(transplant in day 5 :\ Lights- 600 wats Nutrients- bio-bizz PH - 6.5 RH - 40% to 55% Room Temperature -24-27 c Room size-...

Day 30 from seed Found these leaf discolouration. this is 2fast 2vast in soil. Need help ASAP.

Hey, First timer need some help :) I'm in my second week flowering. The problem started with yellowing leaves in the middle of the plant. As I have vegged for 3 months plus i figured some was normal but now much more turning yellow as well as the tops are turning bright green. I added more...