What’s going on here guys ?

[danielsmith120789]

Calcium deficiency?

[IceCalibur]

Hi danielsmith120789, answer as many as you can from this template so the members have enough information to offer advice ;

Also shifted this over to the cannabis infirmary


Soil, hydro or coco?:

Strain:

Photo or Auto:

Plant age:

Pot size:

Has it been repotted? and when?:

Soil type:

Nutes or additives used and how often for soil:

Air temps (max min):

Res temps (max min):

Humidity:

Lighting type and wattage (hps, led, cfl):

Light schedule:

PH level:

EC (hydro and coco only)

Background EC.

Feed schedule and nutes (for hydro and coco)

Anything else you think may be relevant!

[danielsmith120789]

Hi danielsmith120789, answer as many as you can from this template so the members have enough information to offer good advice ;

Also shifted this over to the cannabis infirmary


Soil, hydro or coco?:

Strain:

Photo or Auto:

Plant age:

Pot size:

Has it been repotted? and when?:

Soil type:

Nutes or additives used and how often for soil:

Air temps (max min):

Res temps (max min):

Humidity:

Lighting type and wattage (hps, led, cfl):

Light schedule:

PH level:

EC (hydro and coco only)

Background EC.

Feed schedule and nutes (for hydro and coco)

Anything else you think may be relevant!

Sorry yeah lol
Coco, photo, 3 weeks from seed, in a small mug sized pot before I repot in a few days to 15litre, in coco and perlite mix, humidity around 60%, under 100 watt led, 18/6 lighting, ph 6.2, ec 1.5

cheers


Sent from my iPhone using Tapatalk

[IceCalibur]

Sorry yeah lol
Coco, photo, 3 weeks from seed, in a small mug sized pot before I repot in a few days to 15litre, in coco and perlite mix, humidity around 60%, under 100 watt led, 18/6 lighting, ph 6.2, ec 1.5

cheers


Sent from my iPhone using Tapatalk

What's your background EC? (EC of the water before you add nutrients)..

Have you been watering till at least 15-20% run-off, and have you been watering every day?

An EC of 1.5 seems very high for their age..what nutrient line are you giving them?

What are the grow room temps?

Temperature of the water you're giving these girls? (average room temp is always best, extremes can shock)

I've seen similar damage due to PH issues, I'd lower the PH to around 5.8-5.9 to give yourself a 'buffer' for error, just to rule that out.

[mpsj]

The leaf looks to be in a damaged condition rather than a discoloration phase. My guess would be nutrient burn with that EC.

[barney_b]

Mind showing us the whole plant?

Cheers
B

[Mac]

You say coco and perlite but I see clay balls in there. Really dry clay balls at that.

How well did you wash those balls before they went in? and how often are you feeding?

[Samwise Gamgee]

Is this showing on older leaves, and not as much on newer leaves?

Looks like a magnesium deficiency to me, as its between the veins on the leaf, and I can also see its lighter between the veins on some of your other leaves as well.

I would be looking at adding some cal/mag.