Mold growth on top of soil

Hey guys and gals, thanks for stopping in.

So I went to water today and about 1/3rd of the top of the soil was covered in a white, wispy/cottony-looking substance. I went into somewhat of a panic and cleared it out before getting a picture. Nothing on the plant herself, thankfully.

I know without pictures it is harder to say, but has anyone else ran into a similar situation, is it something to worry about and if so what steps are recommended?

Thanks for any help.

-The Rook

whats your humidity and temp running?

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Sorry,

Low 70s on temp, low-mid 60’s RH.

I haven’t experienced mold before (knock on wood) but with out pics could you please answer these questions and the master growers of this community will help you out.

Answer these simple questions the best you can. If you aew not sure, just bring it to oue attention. We will figure it out.

  1. Indoor or outdoor? - size of grow?
  2. Otigin of seeds?
  3. Regular, feminized, or autoflower?
  4. Origin of water. PH, EC/TDS of source water?
  5. PH and TDS/EC of if mixed solution?
  6. Grow method? Soil, Soil-less, Coco, Hydro, Aquaponics. Please explain.
  7. Nutrients or fertilizer system used.
  8. What typr of lighting are you using? LED, HID (MH, CMH, HPS), or Fluorescents? Please elaborate.
  9. What are the temps in your growspce? Day / Night?
  10. What is the RH = relative humidity in your growspace? Day / Night?
  11. AC, Humidifier, De-humidifier?
  12. Do you have a Ventilation system? Size? 4", 6"?
  13. Co2 Yes / No?
  14. How long have you been growing?
  15. What budget have you set in order to grow successfully?
  16. If you grow hydro, then please explain your hydro method. DWC, R-DWC, Ebb and Flow, Or; Other? Other?

16b. Size and temperature of solution in reservoir?

Always try to upload a clear picture in white light of any issues you may have to allow the community to identify your issue.

Anything you feel would help us give you more informed advice should be included. Feel free to elaborate at the end of the survey.

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Indoor, 2.3 x 2.3 x 5.25 feet.
I do keep a humidifier in the tent, normal RH in my home is ~32%
ZSkittlez auto from ILGM
FFHF soil.
Tap water, PH about 7, filtered to ~0 TDS
Advanced Nutrients Micro/grow/bloom and Cal/Mag.
TDS today came out 1800.
PH is 6.5
LED 150w Marshydro TS1000
4 inch out flow vent.
Only ambient CO2
Plant is on week 8.
My planned budget was about $1k for everything including space set-up(first grow). I estimate I’ve spent around 800 so far. Unless it’s something absurd I’m willing to do what I can to make this, my first grow successful.

Maybe this is a mistake, but I mix new every feeding. Let the water stand for a day or so and it gets near room temp, maybe low 60’s Fahrenheit.

Went looking online, this is a fair representation of what it looked like; the people where I found this picture suggested it could be the result of little airflow/light at the soil level, which yeah, the canopy is full and covers the entirety of the tent’s perimeter.

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@TheRook How often are u watering and feeding? Ur soil is staying wet and the added humidity from the humidifier I’m sure isn’t helping. The humidity is very low in my apartment too when I have the heat on and it stays at 30%, I set the humidifier up outside the tent near one of the windows at the bottom of the tent and use a fan to blow it inside of the tent when it’s time to hang and slow dry the bud. I’ve never had any mold or pests before but soil that’s constantly wet will produce some mold and gnats. Do u have any fans going inside the tent? Any pictures of ur setup? That would be a big help honestly in being able to give u more info on what’s going on

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I agree with @JiggaMan1987, if the soil is constantly wet, mold could grow, what kind if pots are you using? do you hair any fans blowing? Its not a mistake to premix your nutes. I premix mine and put them in the tent with the ladies.

Recently feeding/water every 2-3 days.

Picture of the setup:

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shes massive and beautiful, I would say there is no air flow at the bottom of the plant. I have the same Humidifier.

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@BudzMS Thank you.

Would you suggest another fan placed around the pot level?

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here is a VPD chart

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I’ll see what other grower suggest but you may need some defoilate some of your leaves

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She’s def a big girl. Great job so far. Just like @BudzMS said, ur not getting enough airflow in there. U have to constantly keep that air inside moving around, open up the flaps on ur tent too to let in fresh air, it’ll circulate around the tent. I would trim up the bottom of ur plant, that’ll not only allow some airflow which is what u need, but it’ll also use that energy towards the new growth up top. I’ve also got that same humidifier so that’ll be fine.

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well put @JiggaMan1987

Any guides on how to go about trimming it that you all would recommend?

Definitely gotta defoliate some. Do it at the bottom of the plant. Don’t overdo it too, alot of people get clipper happy and just go nuts and they end up with a skinny looking bunch of twigs. Trim the unnecessary branches at the bottom of the plant, get some clip fans, aim one at the bottom of the plant and one at the top from a higher angle, that’ll strengthen up those branches too and the stalk. I’ll be honest tho, I’m not sure how to get rid of the mold that’s already there. I would just scoop it out and an inch under that layer and ditch it, then add some fresh soil on top

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Thanks @BudzMS just trying to help my guy out.


Prune-Your-Cannabis-Plant_grande

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ffs im out of likes again, this community is great because of that and people like you brother

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