Ugh - New grower abusing seedlings - Help me

[muraydog]

REQUIRED INFORMATION FOR GROW SUPPORT

What Strain is it? Haze Extreme from Crop King
Is it Indica, Sativa or Hybrid? What percentages? Mostly Sativa
How Many Plants? 5
Is it in Vegetative or Flowering Stage? veg
If in Vegetative Stage... How Long? 23 days
If in Flowering Stage... How Long?
Indoor or Outdoor? indoor
Soil or Hydro? soil-less soil
If Hydro, Reservoir size?
If Hydro, Reservoir Temperature?
If Hydro, what type of Medium?
If Hydro, what type of Setup?
If Soil... What is in your Mix?
If Soil... What Size Pot? Solo Cup
Size (Wattage) of Light? How Many? 12x23W CFL (21,000L)
Is it Air Cooled? extraction fan
Temperature of Room/Cabinet? unknown
RH of Room/Cabinet?
PH of Medium or Reservoir? 7.0
Any Pests? no
How Often are you Watering? when cup is light - ~ every 3 - 4 days
Type and Strength of Fertilizers used? Only fertilized once - (4 days ago) - 1/3 strength Miracle Grow
Size or Square Footage of Room? 3.7 ft2

(pH adjuster and nutrient kit arrives tomorrow)
I have been having trouble with my seedlings. At first, when the third node came in, the leaves were yellow and didn't develop. The lower set of leaves got brown spots, but the top looked healthy. (I had watered with tap water, which turned out to have pH of 7.6) {First pic} I fertilized and used bottled water, and had immediate growth. They started looking better.

I changed the lighting system yesterday and watered them with bottled water again. This morning all the plants look wilted. Could this be because the temperature is lower now that the lights are CFLs? It is in a coldish location. {remaining pics taken today}

 

[Goodvibes93]

REQUIRED INFORMATION FOR GROW SUPPORT

What Strain is it? Haze Extreme from Crop King
Is it Indica, Sativa or Hybrid? What percentages? Mostly Sativa
How Many Plants? 5
Is it in Vegetative or Flowering Stage? veg
If in Vegetative Stage... How Long? 23 days
If in Flowering Stage... How Long?
Indoor or Outdoor? indoor
Soil or Hydro? soil-less soil
If Hydro, Reservoir size?
If Hydro, Reservoir Temperature?
If Hydro, what type of Medium?
If Hydro, what type of Setup?
If Soil... What is in your Mix?
If Soil... What Size Pot? Solo Cup
Size (Wattage) of Light? How Many? 12x23W CFL (21,000L)
Is it Air Cooled? extraction fan
Temperature of Room/Cabinet? unknown
RH of Room/Cabinet?
PH of Medium or Reservoir? 7.0
Any Pests? no
How Often are you Watering? when cup is light - ~ every 3 - 4 days
Type and Strength of Fertilizers used? Only fertilized once - (4 days ago) - 1/3 strength Miracle Grow
Size or Square Footage of Room? 3.7 ft2

(pH adjuster and nutrient kit arrives tomorrow)
I have been having trouble with my seedlings. At first, when the third node came in, the leaves were yellow and didn't develop. The lower set of leaves got brown spots, but the top looked healthy. (I had watered with tap water, which turned out to have pH of 7.6) {First pic} I fertilized and used bottled water, and had immediate growth. They started looking better.

I changed the lighting system yesterday and watered them with bottled water again. This morning all the plants look wilted. Could this be because the temperature is lower now that the lights are CFLs? It is in a coldish location. {remaining pics taken today}

Well that's the problem you PH to high drop it down to 6.2-6.8 keep it that range you will be ok

Psalm 104:14

"He causes the grass to grow for the cattle, and the herb for the service of Man".

 

[dubnation]

Also the seedlings are stretching too much. You can lower the lights and they can handle temp up to 90F but best below 85F.

I'm not sure about the soil drainage too. They look overwatered but you lift the cups to tell so that may not be it. PH is too high and I know most people don't like miracle grow products as they have other potential chemicals that aren't clean.

But I don't know about those spots. What type of soil are you using?


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[muraydog]

The growing medium is soil-less soil - it's for seedlings and has no added nutrients.

Thanks for the info! I'm finding my backyard gardening skills do not transfer