Doubt about my setup

[infected82]

Hi all,
I have a 96cm wide , 162cm height and 57.5cm depth with a Hlg 260 v2 rspec for full grow at 18/6

I run a 6x 11l pot which pack tight in there , i have a 100mm fan inline and a 150mm extractor with a carbon filter as exhaust .

My problem is this is my 3rd grow and for the 3rd time the plants with 40days already flowering and never go above 20 something cm in veg, i would like them to grow bigger but i dont know what im doing wrong... I use Tangs feeding schedule with Plagron Light Mix and do some LST, getting what i think is not that bad for a newbie aroud 20 to 30 gram per p

Could this be because of my light lack a little bit of blue to have a better veg? Too much plants for the space , not enough air from inline?

At the moment i have 3x Critical Orange Punch Auto and 3x Amnesia XXL Auto

If someone could help would be apreciated
Thanks

 

[Arthur]

Coco? Soil? When and what are you doing as far as lst? Temps and rH? Many things can keep autos small.

Could be nothing more than you are marginally lit.
An hlg 260 covers a 2x4 in flower. Your slightly over 3x5. Doesn't sound like a lot...

But, 2x4 is 8 sq feet.
3x5 is 15 sq feet, almost twice the sq footage. Low can light makes for small plants.
It can also make them stretch too...


Guessing it is environmental, or possibly messing around too early or too much tho...

 

[Arthur]

Was just sitting here stoned and thinking. I'm in a 4x4. If I could, I would upgrade my current 9 COB 450w setup for the HLG 550 or 600 that I believe is 2 of your panels. Size if plant doesn't concern me as much as harvest weight per sq meter. But, the lighting must be maxed for those #s
On point, I can hit 2 grams per watt, am currently at 450 watts, and (strain dependent) I expect 600 to 800 grams per run. That is normally 4 to 6 autos in soil, 2 to 4 in coco.

The size of your area is just slightly less than mine (15 sq ft to 16), but your lighting, on a smokin run can really only handle about 500 grams

Your #s 6 plants 20 to 30 grams per plant is 120 to 180 grams. So something else is off here.

So here is how i grow autos... germination 80 to 82 degrees. Sprout and seedlings 78 to 82* and 70% rh. Don't go pulling them over or anything, just let them be.
4th node. Top if a large strain. If medium or small only pull out side branches and tie off. Bring the rH down end of veg.
Nothing fancy or major, every time you ask them to grow out their not growing up... have several hundred autos down now. Simple works.

Stoner ramble over.

 

[Trichome farmer]

arthur has everything covered already good advice given simple is best but two things you didnt tell us is your daytime/nighttime temps and humidity and what height do you hang the light

 

[infected82]

Thanks to both ,yes its soil , Plagron Light Mix i added some pebbles this time, the last one temps at the end was a little bad as summer went on at like 33/34 celsius at the closet but still was better than the first one , but this one is going fairly better at 26 to 29celsius , but humidity around 50/55 all time , only when irrigate it goes up a bit ,
i tried light at 90 cm above this time for some time but still no stretch between nodes allways short nodes , currently is at 60cm from tops at 40 days

i started lst at around day 18/20 , i have fabric pots so i usually use 2 anchor points, one for keep the main stem straight and at the other edge i bend the top of main stem so maybe this is what keeps them short...

btw i am thinking to change pots to 7L to have more space , or this will get me even smaller plants? And maybe leaving fabric pots to airpots or regular plastic ones as when i lst its a pain in the axx or you think its ok keeping the fabric ones and starting only tie to the side the side branch and not the main ?

And so, the light should not be the problem then?

 

[Trichome farmer]

Thanks to both ,yes its soil , Plagron Light Mix i added some pebbles this time, the last one temps at the end was a little bad as summer went on at like 33/34 celsius at the closet but still was better than the first one , but this one is going fairly better at 26 to 29celsius , but humidity around 50/55 all time , only when irrigate it goes up a bit ,
i tried light at 90 cm above this time for some time but still no stretch between nodes allways short nodes , currently is at 60cm from tops at 40 days

i started lst at around day 18/20 , i have fabric pots so i usually use 2 anchor points, one for keep the main stem straight and at the other edge i bend the top of main stem so maybe this is what keeps them short...

btw i am thinking to change pots to 7L to have more space , or this will get me even smaller plants? And maybe leaving fabric pots to airpots or regular plastic ones as when i lst its a pain in the axx or you think its ok keeping the fabric ones and starting only tie to the side the side branch and not the main ?

And so, the light should not be the problem then?

( !!!WARNING THIS IS MY PERSONAL OPINION AND BASED ON MY EXPERIENCES!!!)
ok il be totally honest it makes me sad when i see people do that to autos its a very common training method but in my opinion you need to have everything right first before doing such hst i am a big fan of letting autos do there thing leaf tucking is nearly all the training i do but topping and tying branches down works well too if done right but till you get some good runs id stick with simple heres a link to my first auto run using tang schedule wasnt the best but it was good for my first autos https://www.autoflower.org/threads/the-bam-and-cookies-grow.59054/

 

[olbobcat]

Maybe less plants bigger pots. More light? I usually have short nodes at least till stretch, but I pull good weights, If it ..is a smaller variety I go 11L or 3gallon, most the time 5 gallon and sometimes 7gallon. I average about 26" on my plants after much training. It seems to work for me in my small space.