Need help with odd looking early growth

[hukaraptor]

Hey folks,

Been out of commision due to winter months and not being able to keep the temps up in my tent here in Minnesota. I found out (not the hard way, thankfully) that running a space heater with an extension cord is a huge no no.

The details:
3x blue dream fem photoperiod
3gal fabric pots 100% cocoloco
Dyna-gro nutrients
HLG100 Rspec LED
2x2x4 tent
Temps: range from ~66-68 with the light on, 60-62 when it is off
Humidity: 56-60%

This is my first run with this light. We are a 3 weeks after putting popped seeds in the pots. As you can see, the plant in the lower right looks normal. The other two, the leaves are so rough feeling. All 3 seem a bit behind too. I'm thinking this is possibly due to the colder side of temps? Is it possible they are too close to the lights (~18in)? Let me know your thoughts on how I can dial this in.

Mahalo

[1toke]

3 leaf plants usually sign of stress. Possible it is the temp but I grow in my cellar about same temps in Northern New York. Sometimes it is just genetics. I have had 3 leafs outdoors and know I didnt stress them. After it got up a couple feet high started growing normal leaves. I personally wouldn't worry about it but that's just me.

Good luck!

[dirtymike]

To cold ,68 highest temp at early growth stage. Might be PH off a little, 100w at 18 " , probably perfect distance.

[ductwizard]

hey dirty, i'm confused, 68 is the highest the temp should be this early or am i reading what your saying wrong? and if i am, what is the ideal temp. at this stage

[dirtymike]

His temp max at any time was 68. A little to cool for most strains.

[Smallgrow]

Defiantly warmer, look for 75F+ and 60-70%RH , maybe go down to 65 68 at night
you’ll need to get your heater figured out I’d say

[ductwizard]

thanks, i need to wait a cpl. more weeks. patience has never been my strong point

[dirtymike]

Growing dope will teach you patience, if not you won't get stoned like the rest of us tokers. Im sure that is the condition you are craving. As I do too.

[Smallgrow]

Yup patience is one of the most important grow skills

[hukaraptor]

Thanks y’all. I thought I may be running too cool. I’ve mounted my transformer to the back of my light to raise the temp inside the tent. I’ve always kept it on top of tent in a makeshift heat sink because I thought mounting it on the led board seemed odd. Great source of heat! I’m running 75-78 now and dipping down to 65 at night. I’ll see if they can come back so I can manifold.

mahalo

[Bluey]

Hot soil or just a bit much nute will do that to seedlings also. Pretty sure she will grow out of it. Should be fine.