Help with canoeing leaves on seedlings

Greetings… .I’m new here and have a problem with my GG seedlings.

I hope I did this correctly…:thinking:

ILGM Support Ticket:

What is the strain and type(strain name, unknown bag seed, regular seeds, feminized seeds, auto-flower, etc)?


Indoor or Outdoor? If outdoor, planted in ground or in a container?

Size of space (max height and area, length/width)?
6x8…7’ height

Soil or Hydro? Type of Medium used? System type?
Soil and Happy Frog/20% perlite

pH? Of the soil or medium (root zone/reservoir/runoff) and of the water and/or nutrient mix that is fed to the plant?
15 days old- no feed yet
Light water at 6.4

Type and strength of nutrients used? NPK? EC/TDS/PPM levels?
15 days old

Temperature? Day vs. night temp or highest and lowest temps? Root zone temps?
73-75 day
68-70 night

Humidity %?
Swings from 56-60% lights on
80% lights off

Light system/watts/lumens/FLUX/PAR?
600 watt with MH turned down to 300

Ventilation system? Size? CFM? CO2? AC, Humidifier, De-humidifier?
1kw portable AC…
Six 8" passive air ducts on floor
8" 752 cfm extractor fan (used as a scrubber- Not vented outside)

Number “weeks/days” from into Season, Vegetative Growth or Bloom/flowering?
Broke dirt 11 May…14 days old…

Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but try to be brief and to the point. Short and to the point questions and facts will help us help you

**I used humidity domes and misted daily, so I think the problems are possibly (or probably operator error)
Any suggestions or ideas would be greatly appreciated.

Good Growing

EDIT: Oops I for got to attach photos…

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What soil brand and type are you using?


Welcome to the community ! you may have your light to close. All of the seedlings look to have the same issue.


@DirtBug welcome to the community Look like light to close and next time don’t water the leaf


Using Happy frog with 20% perlite added…

My 600 watt turned down to 300…
Light is 36" above my babies…
Should I move it higher??

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I used mh light for veg and when they were seedling mine were at 36" as well but I had a fan blowing which kept leaf temp from getting too hot. Do you have an infrared temp gun


Are you still using domes? If so I’d remove them. If it’s 73-75 degrees in the tent it’ll be much hotter under the domes, could be heat stress, those mh give off quite a bit of heat, add the domes and it might be to much for them. I haven’t grown with mh so I won’t advice on hanging distance, although based on the stems of your plants I don’t think they are getting to much light. No need to spray the plants anymore. Consider burying the stems a bit when you transplant.


I have an IR gun coming from Amazon today

Thermometers give space temp but for actual leaf temp ir works great mh and hps can make radiant heat. Does your arm get warm if you hold it where your plants are?

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No, my arm feels cool…
I raised my light to 46", removed the domes and shut off my humidifier…
The RH was steady at 58%…
I’m thinking that I should put off transplanting them…??

Thanks for the Welcome…
Never misted before…
Humidity inside has been low around 40% so I thought I’d try it…Haha shame on me…

Thank You everyone for responding so quickly…:+1:
Wish I would have found this forem sooner.
Looking forward to learning more about this Amazing plant.

Okay…Just got this nifty IR gun from Amazon (can I mention them?)
Anyway my leaf temps range from 68.3-68.7°f
Isn’t that a little cold?

Have you seen this chart? Its very helpful for dialing in temp/ humidity for grow stages and optimizing grow

And this is good for getting lighting right


Very Cool :sunglasses:… Thank You​:+1:

After looking at the VPD chart I am in the optimal zone…But
My canopy temps are 70°f with 55% RH
My leaf temps are 68°f
Are my temps a little low??
I usually run 75-77°f at canopy.

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Mine in veg like the 80 degree area. I’m new to this so maybe someone smarter like @MidwestGuy @kellydans


Those temps and humidity should be fine.


Thank You…
I had heat stress issues and thought I’d raised my light a little too far…
Thanks Again
Good Growing