Crush
Member
This is one of the reasons I stopped growing with hydroponics.. these sorts of problems kept occurring much too often
Anyhow, the big thing is that your new leaf growth looks almost yellow, and the older leaves are nice and green. This suggests a mineral deficiency. A mineral deficiency suggests a PH problem.
Manganese (Mn)
Symptoms: Growth slows. Younger leaves turn pale yellow, often starting between veins. May develop dark or dead spots. Leaves, shoots and fruit diminished in size. Failure to bloom.
Sulfur (S)
Symptoms: New growth turns pale yellow, older growth stays green. Stunts growth.
Notes: More prevalent in dry weather.
What worked for me is lowering my PH to 5.2 and then letting it rise to 5.5.
The guy at my local hydro store says if the PH goes above 5.5, the plants will get burned. He was right. This is specific for my tap water in my city.
I eventually moved to organic and now soil and all my problems are solved. I water once a week with tap water and no longer have these issues. Try 1 clone in some soil just as a comparison and see if it can help you troubleshoot the problem.
Also, if the plant is too cold, dry, or stressed, they will grow slowly.
Anyhow, the big thing is that your new leaf growth looks almost yellow, and the older leaves are nice and green. This suggests a mineral deficiency. A mineral deficiency suggests a PH problem.
Manganese (Mn)
Symptoms: Growth slows. Younger leaves turn pale yellow, often starting between veins. May develop dark or dead spots. Leaves, shoots and fruit diminished in size. Failure to bloom.
Sulfur (S)
Symptoms: New growth turns pale yellow, older growth stays green. Stunts growth.
Notes: More prevalent in dry weather.
What worked for me is lowering my PH to 5.2 and then letting it rise to 5.5.
The guy at my local hydro store says if the PH goes above 5.5, the plants will get burned. He was right. This is specific for my tap water in my city.
I eventually moved to organic and now soil and all my problems are solved. I water once a week with tap water and no longer have these issues. Try 1 clone in some soil just as a comparison and see if it can help you troubleshoot the problem.
Also, if the plant is too cold, dry, or stressed, they will grow slowly.