Beginner having problems

Nutrients
1

Hello, I am 5 weeks into a grow of two types of autoflowering plants. Two Amnesia Haze and two White Widow. Things went well until a couple days ago. Here is more information:
Seedbank used:I love growing marijuanna
Strain:Amnesia Haze and White Widow
Indoor or Outdoor? Indoor
Size of space: 2 x 3 x3 high
Soil or Hydro? Soil
Medium used: Pennington Professional potting mix
PH: 6.5
EC/TDS ppm levels: I don’t know
Temperature: Usually around 82 when the lights are on
Humidity %: 30
Light system/watts? Viparspectra Reflecto Series 300 watt LED grow light

I am having problems with leaves curling and turning yellow. Both upper and lower leaves. It is worse with the Amnesia Haze.
I could use some advice. Here is a link to a photo:
https://1drv.ms/u/s!AgQWZlKtZgJmg4sR59hnWLVDcB0gOQ

2

Welcome to ilgm @zfish

It would be great if you could post the ingredients of your Pennington soil mix, please.

Tag me like this @bob31 when you respond and I will get a flag letting me know you responded.

3

Can u get a better pic please it’s a little far for me.
Thanks @zfish

4

Taco is usually caused buy heat what kind of light and how close :wink:

2 Likes
5

That’s what I was going to suggest but I couldn’t access the pic so I didn’t want to comment. Looks like he is using a 300 watt LED and his tent is only 3 feet high.

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6

Any way you can raise the Viparspectra . . . or lower the plants?

7

30% humidity is wayyy way to dry. Could be it.

1 Like
8

hi there I grew amnesia haze auto and had similar issue. In my case i burnt them from too close led. How many inches above the plant is your light?

9

Thank you all for your advice. I raised my lights and moved my fan so it blows air between the plants and the lights. As summer kicks in and the dehumidifier runs less and the AC runs more, my basement will be cooler.

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10

To me it looks like more than just heat stress.
I see nitrogen deficiency and burn. And what could be calmag deficiency. But that’s just my 2 cents :alien:
If you could a pic of the hole plant would help.

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11

Here is a photo of all the plants. When the problem started about a week ago I added fertilizer. The burnt tips did not appear until after that.

https://1drv.ms/i/s!AgQWZlKtZgJmg4sST_WQE-4fW0SQLA

12

Would it be possible for you to post your picd on the site? It would sure save us a lot of time!

13

cut down on nitrogen and ad phosphorus that plants in flower :hibiscus: .
Who’s got a copy of the weed problem chart.

14

@bob31 what is your thoughts your better at this then me?

15

Here’s the chart

868×575 375 KB

I think it’s pH related to the soil.

Also what kind of fertilizer?

2 Likes
16

Yeah that’s it thanks @bob31.

17

Sorry @bob31 this new stash has got me

18

I still think calcium issues are there.

19

It’s too bad @zfish didn’t answer my question when I asked it. That stuff is the equivalent of miracle grow and it already has time release fertilizer in it.

Since it has the word mix in it it’s probably a soiless mix requiring a 5.8 pH.

I recommend a soil. Without fertilizer and until then nothing but 5.8 water.

Good luck with your grow!

20

@bob31 Do you mind if I pick your brain??