[jmystro]

This leaf is not exhibiting a magnesium issue. A leaf does not tell a story. We need to see the whole plant to give advice. Where ‘damaged’ leaves are on the plant matters.

[nadz]

Here’s a shot of the whole plant for ya.

[jmystro]

Thanks. Now I can help you. I see a few issues here. Mainly with the setup. I don’t know how nutrition is being applied so I can only go on what I see. I need to know how they’re being fed. The root health is plant health. The roots are not happy and are lacking nutrition in general. An out of range pH buffer could be the issue. The small pots sitting in saucers is also an issue. Never let roots sit in a saucer of water. Small pots need run off or salts will form during dry backs. Especially at the bottom. Small pots have little buffer in terms of minerals and pH. I need more info to give better advice on nutrition.

[nadz]

I used build a soil combined with av50/50 mix ocean forest and promix with 1 tbs grow dots, they get recharge on Mondays and h20 after that, 250 mls a day fed by drippers

[jmystro]

You’ll need to transplant them into larger pots asap. They do not and will not have enough nutrition in the small pots. Whatever was in the BaS and OF has been depleted. There is only about a month’s worth of nutrition in a 1 gallon pot of soil. 15 grams of Grow Dots will not be enough to feed these plants going forward. Only the little bit of nutrition from the Grow Dots is feeding them now and it will run out soon. To be successful with amended soils you want 15+ gallons of soil to get all the way through harvest. Grow Dots will work best in at least a 3 gallon pot with 70-75 grams to get through a cycle. 1 and 2 gallon pots require mineralized hydroponic nutrients delivered multiple times a day. Switch to liquid feed drain to waste or transplant into bigger pots. Remove those saucers and allow the water to drain so roots never sit in water.

[big_time]

To much water more nutrients:)