What am i doing wrong? Help!

[stinkhouse]

I have three CBD Auto-Flower Compassion Lime seedlings growing indoors in soil. The seedlings are on day 10 and 9 since they popped from the soil. Yesterday, the first set of leaves on last of the girls to pop, showed browning on the edges and they are now curling inward. See images below. I’m new to auto-flowering plants and want to know what I could be doing wrong.


Full details:

3 x CBD auto Compassion Lime from Dutch Passion Seed Company
Grown Indoors
Each in a 5 gallon fabric pot
Seeds popped on the 8th and 9th June
Soil: recommended by specialist outlet
Fed only water which has been left standing overnight to get rid of chlorine and pH corrected to between 6.2 and 6.5
Light: 2x Kosheal 600w led grow lights and 5 x 24w CFl daylight lamps
Temperature: varies between 19 and 26 degrees Celsius
Humidity: Low 60s with lights off, mid 40s - low 50s with lights on
Nutrients: None added yet - not sure when to start.

[welshweed]

From my limited experience - too much light, therefore too much heat, judging from your last pic.

[Catfish22]

Is the fan blowing on that plant?

[CaptainWiese91]

A little bit too dry environment in that stage.
The leaves will do this when the humidity is too low.
not the biggest problem. Every summer I have a hard time keeping the humidity up during the day and every summer they do this.
you can put a wet towel in here for a little bit more humidity

[dilvish]

I think your temps and humidity should be good if the readings are accurate. Make sure you don't over water and if it is light damage move the LED's to at least 24-28 inches away from the tops. Seedlings don't need tons of light at the beginning...cut the CFL's altogether in my opinion. With 2 x 600W LED's, they will have all the light they need. The CFL's will just be wasting electricity.

If you have "super soil" you'll need nutrients in about 4 weeks. Unless of course the plants start to turn pale green, then it's time to add more nitrogen.

[Puglover1]

Pics can be deceiving, it looks like your fan is blowing over the lights. With those panels the heat seems to be felt underneath. I blow a fan under my LEDs and one blows over the full spectrum light, the heat is on top of that one. Just a thought. Those panels are all you need right now. Good luck!

[bboyfromwayback]

I agree with previously mentioned, looks dry and hot. It gets dry as a bone here in the winter so I keep a pot of wet soil in
my tent, no plant in it. Just keep the soil wet and it’ll help get humidity up and takes weeks to dry

[Puglover1]

Good idea. Better than my wicking towel/fan/basin in the corner. Do you use your usual soil mixture or just plain old potting soil? I need to get some coco bricks broken up but it's too hot outside in my full-sun yard. Garage isn't much better, I keep the big door open to help the house stay cooler.

[bboyfromwayback]

I should be more specific, I keep a wet pot of coco coir in my tent. I imagine a wet pot of regular soil would provide plenty of gnats 😂

[stinkhouse]

Thanks guys, I have now raised the LEDs and turned off the CFLs. Temp 20C and pH 49% at the moment. The little plants' stems looked tall and thin so I lowered the lights to prevent them stretching, maybe too much. It's difficult to make out but the fan in the photo is actually facing backwards to just gently circulate the air.

[Puglover1]

I couldn't quite tell, your fan did look backward-facing to me. Is it an oscillating wall-mount fan? That's what it looks like.

[stinkhouse]

I forgot to mention that the lights are on VEG. At what stage should I switch to BLOOM and when and what nutrients to use?

[SoOrbudgal]

Put both switches on when plants are 2wks old on autos. That's what i've done but you have to know the distance of what those lights have plant health. Move them up above canopy of plants 26" . Read as much about others how they have started with lights. Just know 26-30" is safe for seedlings, it's not a guessing game it's a job growing and educate yourself to the basics. Read about a fertilizer and choose one, we all have our own ideas. We don't all use the same.

[Catfish22]

I have mine under veg and bloom at 22" from first week.

[Puglover1]

I should've had both on earlier here, maybe they would've gotten taller. Maybe not.

[stinkhouse]

OK thanks guys, Those who suggested too much light called it right. I turned the CFLs off and raised the LEDs and the plants look much happier now