Are they Sick?

[420High]

Can't seem to figure out what's wrong with my plants? 24 days old now😔

[9fingerleafs]

Are the plants in soil or coco?

[Bluey]

Looks like a bit hot but no leaf twisting...hmm

[9fingerleafs]

The twisting and burning and other toxicity symptoms appear when the plant absorbs more nutrients than it can handle. When the plants are that small they don't have enough roots to absorb and the hot soil prevents the roots from growing so it looks kinda like deficiency and kinda like super over watered.

[Allenpro]

If that is soil its kind a hot and I wouldnt be feeding them anything if its coco coir I would dial it down to about 1/4 the recommended dosage of what ever nute mix your using. Seedlings are like a fat kid at an all you can eat restaurant and they go straight to the desert table and never stop at the veggie table. Actually I guess Puppy is more politically correct

[Allenpro]

Soil or coco coir, look into Recharge. Happy roots are very forgiving

[420High]

Thanks guys for the quick response. Im having trouble getting the temperature under 30 degrees. Humidity is at 35 to 40. The extractor fan is on 24 hours. I'm running with a lumiiblack 400 watts at 100%. Should I turn it down to 75%? Should I get a UV/IR bar to attach to my lumiiblack?

[9fingerleafs]

The temp is too high and I think the light intensity is too. Reduce the power to half or less, once they're green again and reaching upward to the light then little by little increase light intensity.

Are you growing in coco or soil?

[420High]

My set up I built myself in the cellar.

[420High]

This was the first day. I kept the light at the same distance for 2 weeks and noticed that they wasn't growing fast enough. So I lifted the LED to 40 cm from top of pots.

[Bluey]

You need to add a humidifier to the room and get it up to 70% if you can.

Also need an air-conditioner to get temps down around 25⁰C. 30 is way too high unless you are running CO² over 1200PPM.

Do not add IR or UV until you have your environment fixed. You'll kill your plants.

[Allenpro]

Agreed, I have been growing indoors for over 10 years and I just found that out the hard way last year that low humidity will do that

[420High]

Hey thanks my friend. I will do this at once. How often shall I water them? At the moment I'm giving them 50ml fresh water per day

[Bluey]

Looks like your soil may be hot so give it more and get some run off to flush out some of the fertiliser, then wait for pot to lighten up. Repeat if necessary.

[420High]

My plants are in normal seedling potting soil as I can't get Coco here in Germany. I'm using normal water with no nutrients yet. I will buy a AC unit and Humidifier tomorrow. As you can see I only have one 400 watt LED for 15 plants at the moment. I have ordered an additional 5 more LED's since 6 weeks now but still haven't received them yet. The supplier said since that laws changed in Germany this year everyone wants to grow now 😂😂😂. I hope they come before the first topping. Just started building the second stage grow room.