Please help diagnose my plant!

[Raiders]

Hi, please help me see what’s wrong with my grow. I’m currently in week 5 of veg and noticed the leaves starting to look good/yellow and a bit of curling. I have 4 plants and only 1 looks really bad. The other 3 looks healthy with the exception of 1 having mild symptoms on 1-2 leaves.

Using drip hydro nutrient line
Coco medium tupur
Ppm going in around 1100
Ph 5.8-6.0

Run off
Ppm 1800 (is this is too high?)
Ph 6.0

Room temp
78 lights on
72-70 lights off

Humidity
60%

Lights
Gavita DE running at 660W

 

[GrimReffer]

Hi, please help me see what’s wrong with my grow. I’m currently in week 5 of veg and noticed the leaves starting to look good/yellow and a bit of curling. I have 4 plants and only 1 looks really bad. The other 3 looks healthy with the exception of 1 having mild symptoms on 1-2 leaves.

Using drip hydro nutrient line
Coco medium tupur
Ppm going in around 1100
Ph 5.8-6.0

Run off
Ppm 1800 (is this is too high?)
Ph 6.0

Room temp
78 lights on
72-70 lights off

Humidity
60%

Lights
Gavita DE running at 660W View attachment 1336466View attachment 1336467View attachment 1336468View attachment 1336468View attachment 1336469

Your runoff is a little high in my opinion, how often are you watering? Are you keeping the coco wet or letting dry out? How far away from your plants is your light?

 

[Raiders]

I am feeding every two days. I keep my coco saturated probably around 80-90%

Lights are 4 feet from top of canopy

 

[GrimReffer]

I am feeding every two days. I keep my coco saturated probably around 80-90%

Lights are 4 feet from top of canopy

What size pot is that?

 

[Raiders]

3gal

 

[Greenjourneyman]

Leave Margins turn rusty, white down splotching. Minor scrawniness in new leaves. But your other leaves are still green and healthy looking.

looks like your Potassium is a little high the fertilizer mix. Are you mixing your own or using bought pre-mix solutions?

 

[Raiders]

I’m mixing using the drip hydro line

Drip Hydro | Feed your fire. - Drip Hydro

Get the most out of your garden.

driphydro.com

Basically mixing together power si original, drip A&B with calmg.

 

[Greenjourneyman]

That’s your problem right there.
drip B is low Nitrogen and high P/K clearly a blooming cycle product. Just do Drip A and calMag for a few days see if that stops the crinkle. Your plant is currently in the vegetative stage.
you may want to do some research into which nutrients cannabis craves at each part of the growth cycle.
good luck

 

[Raiders]

Thank you so much !

 

[SmplGrwr]

Are you using the drip hydro feeding chart? I was using the normal chart and was seeing issues similar to yours. I started feeding the heavy chart because I was using coco coir which has a low cation exchange. This means it doesn’t hold on the nutrients in the media as long as soil and burns through calmag faster. Especially under leds due to high blue photons.

 

[SmplGrwr]

Also don’t use flow if you use power si.