Need some advice with 3 week old plants

[growerhd23]

Long story short. I'm new to growing indoors, I have 2 plants that might need some attention.

I have 1-Northern lights auto flower and 1 c-99 plant. Both are 3 weeks old. I had fungus gnats right off the bat from seed. I'm almost done with them now. From week 1-2 I did not water, and have not over watered since. I still get some larva when I water, spray it to kill them and 90% are gone.

The problem I had was the bottom leaves of both plants turned yellow and have a brown spot. I believed this to be a N deficiency so I added some Fox Farm nutes a week ago. I have done 2 waterings with this and they both have reacted well. The northen lights plants leafs are folding up however. 18" away for LED lights. I do not have a fan blower on it currently. Its growing well, but why the folding of the leaves? Also, thoughts on the bottom yellowing leaves? This happened to both plants.

Temps are 75-77 day, 71-72 night. Humidity is 45-50%.

Any input is greatly appreciated!!

And of course it will not allow me to upload a photo, any thoughts? Says it failed.

[Glynne]

Hi mate... Welcome to the forum.
OK.... To start, you need ten posts before you can upload pics so get yourself over to the intro thread and say hello to a few ppl and the 3word story thread is cool for getting your post count up without spamming.
Next... Size of grow space? What medium are u using? Are you pH'ing your water? (don't if your in soil). Folding or canoeing of leaves can be a sign of heat stress, you really need a fan to circulate air or your gonna get heat spots under your light. I don't use led's so can't comment on that too much.
We really need a pic to help diagnose the problem.

Sent from my 4047X using Tapatalk

[M_C]

A picture speaks a thousand words... I can think of a couple of reasons for both symptoms... but couldn't be sure without seeing the plants.

Oh, you mention an LED light, but not the size or any other info...

[growerhd23]

Ok thanks for the posts needed to upload, I now have 10 & still cannot upload anything??

My Grow space is a 48"x24"x60" grow tent. Organic soil, soil PH is 7. Temps 75-77 during the day, 71-73 at night. Humidity is 45-50%. Have a charcoal filter exhaust 4" & 2 4" passive air intakes.

I had a fan blowing on the plants slightly, after 2 weeks since the leaves were continuing to curl slightly on the edges I moved it away to see if it would help. No difference. Can it really be heat stress with LEDS at 18" away. My hand doesn't fell warm at all placed right above the plant.

[growerhd23]

LED light is a VIPARSPECTRA Reflector-Series 300w.

Is there also a size restriction for attaching photos? Just says upload failed. I have plenty to share!

[M_C]

Make sure your pics are below 2 meg mate

[growerhd23]

Thanks for the size advise! This is my Norther Lights auto.

[growerhd23]

This is my C-99. A little small at 3 1/2 inches for 3 weeks of veg. When should I begin the 12/12? Grow tent height is 5ft plus carbon filter and lights.