Leaf colouring

**Harry1990** · 01-06-22, 11:34 AM

Hi so I’ve just switched to a SE7000 spider farmer from hps for the last 3 weeks. 1 out off 4 plants seems to be going purple on the leafs is this normal for leds? There hung about 15inch above the plants. Apart from that there looking great.

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**CityDweller** · 01-06-22, 11:37 AM

Originally Posted by Harry1990

Hi so I’ve just switched to a SE7000 spider farmer from hps for the last 3 weeks. 1 out off 4 plants seems to be going purple on the leafs is this normal for leds? There hung about 15inch above the plants. Apart from that there looking great.

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The purple would be genetics, temperature or mineral balance. Or a combination. I have never seen lights affect the color other than burning or bleaching.

**Harry1990** · 01-06-22, 11:46 AM

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**CityDweller** · 01-06-22, 11:48 AM

My instinct says mineral imbalance being exasperated by the increased uptake with the amazing light. I would dim the lights a bit to slow it down. You have plenty of healthy leaves left to finish.

**CityDweller** · 01-06-22, 11:49 AM

What are you feeding? How often?

**Harry1990** · 01-06-22, 11:54 AM

Originally Posted by CityDweller

What are you feeding? How often?

Overdrive and canna a/b with an ec around 1.6/1.8 my background ec is 0.4. Feeding every other day I know so feed once a day. It’s only done this with the new light?

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V8 · 01-06-22, 12:01 PM

Originally Posted by Harry1990

Overdrive and canna a/b with an ec around 1.6/1.8 my background ec is 0.4. Feeding every other day I know so feed once a day. It’s only done this with the new light?

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No need to feed that strong in soil everyday IMO.

To me it lookes like pheno thing. I would not stress it. Enjoy the view

she hopefully will get darker and darker in color. How night temps?

And I would reduse the feed a tad. She is a bit 2 dark/shiny. 1.2-1.5EC should IMO be better.

V8

**Harry1990** · 01-06-22, 12:04 PM

All the others look like this 1

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Am growing in coco temps at night with light on round 24c when lights off 14c. RH around 55 thanks

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V8 · 01-06-22, 12:06 PM

In coco you should feed every day! And with good runoff.

The coloring might be because of the cold night temps. It is a bit low. Maybe try to up it to 18-20?

V8

**Harry1990** · 01-06-22, 12:09 PM

It’s only when I put the new light in less then a week agothat’s only thing I’ve changed. Was like the others before?

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