New growth curling in with yellow

New growth on my 4 week old girl is coming through curled like a canoe and is turning distinctively yellow

Ph 6.8
Ec 1.6

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Can you fill this out? Please be as detailed as possible. Exactly what lighting and distance, how old is the plant, what soil, what nutes, how often do you water, what kind of tool do you use to measure PH etc.

Without info it’s almost impossible to help.

To create a grow support ticket we need some basic information to help diagnose the issue.

COPY/PASTE the below list into your forum post.
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so = NA

  • Strain; Type (regular, photo or autoflower), Bag seed, or NA and how old?
  • Soil in pots, Hydroponic, Peat or Coco?
  • System type? (For Hydro only)
  • PH of runoff or solution in reservoir? How do you measure?
  • What is strength of nutrient mix? Brand?
  • Indoor or Outdoor
  • Light system, size? (MH, LED, Fluorescent, CMH or other) and how high?
  • Temps; Day, Night
  • Humidity; Day, Night
  • Ventilation system; Yes, No, Size (how many CFM)
  • AC, Humidifier, De-humidifier, Yes, No
  • Co2; Yes, No

If you can, upload a picture of your plant. It helps the diagnosis, if needed.

Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but short, to the point questions and facts will help us help you :slight_smile:


You can tag anyone by using the @ sign like this: @raustin.

This is a guess only but over watering and heat are your issues. THE SUPPORT TICKET will be the definitive data though.


  • Strain; Type feminized trainwreck?
  • Soil in pots
  • System type NA
  • PH of runoff or solution in reservoir?
    Runoff ph 6.5
    Soil stick ph 6.8
  • What is strength of nutrient mix?
    Desert green grow 5ml per ltr
  • Indoor
  • Light system, size? 1 hps/1 led both 600w about 40cm high
  • Temps; Day,25-27c Night20-22
  • Humidity; Day45-55%, Night40-50%
  • Ventilation system; Yes, Size (how many CFM)8inches unsure of cfm
  • AC, Humidifier, De-humidifier, no
  • Co2; No

Thanks for your help champ much appreciated the top knowledge you have given to help a fellow grower,
Fyi 1.8 ec is the reccomended ec for soil that i have seen on alot of websites, ph has also been recommended between 63.-6.8 in soil. My run off is 6.5 and my soil prong is 6.8

How far away is that HPS light?

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Mine did same thing with mh to close I fried them like lil eggs. Poof

Its roughly 45cm away

She is cooking… soil is too hot… :wink:



I think you should move the light up to around 25" or 63cm.


It already is 45cm

Sorry I meant 25 inches, or 63 cm.

It dont take much and mine was 400w them lights are great just not that close. And it cost me 4 lil ones, to learn.

Or … overwatering… :wink:


She is cooking… flush her asap… :wink:



When you say flush you mean flush with double the pot of water?

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Yes… 3 times the size of your pot … 3 gallon pot… 9 gallons of water or 15 gallons. … :wink:
Up to you… :wink:

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Yes 1.6 ec is probably like 1600 if your tds meter is like mine it will say times 10 somewhere but she needs to be around 4-500 max right now i advise the same flush immediately

And i see soil prong? Do you not have a ph meter? Those soil probes are useless in our world as you need accuracy

I have that and a digital run off meter