Leaves Discolored Between Veins And Canoing | Need Help

Seems a Ph of 5.5 is a tad low, try bumping it to 5.8-6.0. for a week or so and watch for changes........ My partner runs his at 5.9 with great results.

5.5 is in the acceptable range for coco. Although it is on the low end, it still should not be causing nute lockouts.

Without knowing specifically what nutes you've been using (and amounts of each), there's not much we can do to help.

FyaBun said:

Hi Guys,

60Watt COB LED (plants about 40cm away from light source)
Grow space of 30x30x150cm
Humidity +-40% (after adding a humidifier)
Temperature at 24 Degrees Celcius
Soil: Coco/perlite 50/50
Biobizz grow nutrients
Ph of 5.5

This is my Blue OG from g13, have had a range of problems, setting up the grow space and slowly sorting it all out. Plant has been stunted from the start. its about 6 weeks old now.

Noticed today that the leaves has discoleration between the veins and the serrated edges kind of point upwards, the leaves are also very scruff to the touch (spiky almost)

Any ideas?

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She looks hungry. Are you feeding everyday?

Looks hungry and the onset of mag def

Growing in coco i run at 5.9-6.1 try feeding mixing in some epsom salt at 1tsp/gal

Yeah definitely a nutrient issue. 5.5 is to low for coco, go to 5.8-6.0 as stated above and plants should start taking up nutes when feeding.

Grimmstone said:

Yeah definitely a nutrient issue. 5.5 is to low for coco, go to 5.8-6.0 as stated above and plants should start taking up nutes when feeding.

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5.5 is not to low for coco. I have dipped to 5.1 (although not advised) without any major issue. It is to low for soil.

Grimmstone said:

Yeah definitely a nutrient issue. 5.5 is to low for coco, go to 5.8-6.0 as stated above and plants should start taking up nutes when feeding.

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BTW, welcome to the Farm.

Ur ph is way off, that is one thing, did u feed? If so flush, may be add a little calcium.SNOLEPERD

Enforcer said:

BTW, welcome to the Farm.

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Thanks Enforcer. I found this site a while ago but didn’t realize I wasn’t a member till the other day lol.

Grimmstone said:

Thanks Enforcer. I found this site a while ago but didn’t realize I wasn’t a member till the other day lol.

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Common stoner mistake :D

Needs a dunk in pure calmag!

FyaBun said:

its about 6 weeks old now.

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WOW that's a long time, you should have like six nodes or more by now, you rekon she's a slow grower?
by the way she looks all miniaturized and all mag deficient i'm gonna go with killing it with too much light on this one...

Try raising that LED away from the plant and watch for when the plant starts reaching for the light and leave the light there, did you know that certain LED lights need to be really far away from the plants specially young plants?

Just to get back to you all, as i got frustrated and left it to tend to other projects (xD).

I figured out the problem, as M8ty said aswell, it was light burn/stress that it had to cope with since it started, i have now added a piece of groundsheeting between the plant and light (like they use in greenhouse's) and she is perking up again.

she is burnt to a crisp (way worse than what those photos are), next run will be better

m8ty said:

WOW that's a long time, you should have like six nodes or more by now, you rekon she's a slow grower?
by the way she looks all miniaturized and all mag deficient i'm gonna go with killing it with too much light on this one...

Try raising that LED away from the plant and watch for when the plant starts reaching for the light and leave the light there, did you know that certain LED lights need to be really far away from the plants specially young plants?

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My grow cab is maxed out in space, so the sheeting allows for the light to be filtered down at least. until i can get a bigger cabinet.

Enforcer said:

BTW, welcome to the Farm.

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Enforcer said:

5.5 is not to low for coco. I have dipped to 5.1 (although not advised) without any major issue. It is to low for soil.

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I have been feeding it full strength Bio bizz grow from week 2