First 400W grow.

This post is about slow growth. Here is all the specifications that i see ppl being asked for when they make the usual "help me" post and dont give out any details except for the problem.

I
I just started my first indoor growth early this month, actually my first grow ever. im growing in a 100x100x180 grow tent. using a 400w MH for veg and then switching to a 400w hps for flower.
(sorry if im using cm and celcius im from europe, hope its not an issue)

I feel like i have the basics under control, i have the room ventilated, a fan to blow at the stems, purchased the seeds "White Widow" from a good seedbank, growing in biobizz all mix soil and have been using rootjuice so far twice a week. (i have fertilizer for the rest of the grow, but i havent used it yet.

i have been watering my seedlings/small plants every 2nd day until the water ran out the bottom and the top of the soil has been alowed to dry out in between waterings.

My bulb is 20-25 cms from the top of the plants top. (a little higher maybe 5-10 cm in the first 4-5 days until i lowered it)

The only issue that i can think of that i have is, im growing in the cold north, and im growing in my addict wich measure a temperatue of 2-7 degrees celcius outside the tent. When the lights are on the temperature in the tent doesnt drop below 17.5 degrees celcius.

At night the temperature is slightly higher because i have a timer that stops the exaust fan that is connected to my carbon filter, therefore drasticly diminishing the amount of cold outside air getting drawn into the tent.

Another timer turning an oilheater 400w on 30 mins before the lights go off wich radiates heat in the tent.. im currently comparing to another guys grow log and his plants just seems to develop better than mine. he is a beginner aswell. we are growing different strains but still, they followed eachother up until around day 11-12

Now his is just going mental, they have 3 sets of fanleaves and they are way more developed than mine, he is also growing from seeds, im currently at day 17 from germination.
day 1-3 germination.
day 3-7 in soil without artificial lighting (i had to get a normal reflector but cool tube didnt heat the room enough.
day 7 -17 under a 400w mh.
I started them up in 1/2 Liter pots and repotted them at day 16 to 6.5 liter pots.

The best developed plant is around 4 cm tall and have its second pair of fanleaves, and just about to develop the 4 new fanleaves at the intersection of the second ones. the first set of fanleaves is roughly 6 cm wide from the end of one to the other. the worst developed one just has its first set of fanleaves.

I know this is difficult without pictures and if they are really neccesary i will make an effort to upload one.

I guess this post is about 2 things, either im doing something wrong and need to correct that. or they are fine and i need to stop being a baby and get over my "first grow" syndrome. All tips are very welcome and sorry for the huge wall of text.
 
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spek9

Well-Known Member
Welcome to RIU! Happy growing :)

I've been bitched at for saying things like this, but I assure you that it's much nicer coming from me than some other people.

Break up your paragraphs so they are easier to read. There's lots of advice to be had here, but most won't read a huge blob of text. Capiche?

-spek
 

weedenhanced

Well-Known Member
This post is about slow growth. Here is all the specifications that i see ppl being asked for when they make the usual "help me" post and dont give out any details except for the problem.

I
I just started my first indoor growth early this month, actually my first grow ever. im growing in a 100x100x180 grow tent. using a 400w MH for veg and then switching to a 400w hps for flower.
(sorry if im using cm and celcius im from europe, hope its not an issue)

I feel like i have the basics under control, i have the room ventilated, a fan to blow at the stems, purchased the seeds "White Widow" from a good seedbank, growing in biobizz all mix soil and have been using rootjuice so far twice a week. (i have fertilizer for the rest of the grow, but i havent used it yet.

i have been watering my seedlings/small plants every 2nd day until the water ran out the bottom and the top of the soil has been alowed to dry out in between waterings.

My bulb is 20-25 cms from the top of the plants top. (a little higher maybe 5-10 cm in the first 4-5 days until i lowered it)

The only issue that i can think of that i have is, im growing in the cold north, and im growing in my addict wich measure a temperatue of 2-7 degrees celcius outside the tent. When the lights are on the temperature in the tent doesnt drop below 17.5 degrees celcius.

At night the temperature is slightly higher because i have a timer that stops the exaust fan that is connected to my carbon filter, therefore drasticly diminishing the amount of cold outside air getting drawn into the tent.

Another timer turning an oilheater 400w on 30 mins before the lights go off wich radiates heat in the tent.. im currently comparing to another guys grow log and his plants just seems to develop better than mine. he is a beginner aswell. we are growing different strains but still, they followed eachother up until around day 11-12

Now his is just going mental, they have 3 sets of fanleaves and they are way more developed than mine, he is also growing from seeds, im currently at day 17 from germination.
day 1-3 germination.
day 3-7 in soil without artificial lighting (i had to get a normal reflector but cool tube didnt heat the room enough.
day 7 -17 under a 400w mh.
I started them up in 1/2 Liter pots and repotted them at day 16 to 6.5 liter pots.

The best developed plant is around 4 cm tall and have its second pair of fanleaves, and just about to develop the 4 new fanleaves at the intersection of the second ones. the first set of fanleaves is roughly 6 cm wide from the end of one to the other. the worst developed one just has its first set of fanleaves.

I know this is difficult without pictures and if they are really neccesary i will make an effort to upload one.

I guess this post is about 2 things, either im doing something wrong and need to correct that. or they are fine and i need to stop being a baby and get over my "first grow" syndrome. All tips are very welcome and sorry for the huge wall of text.
Welcome to riu do not feed nuts till ur plant burn that's so dumb lol by the sound of it ur room is too cold u want about 25 degree if I was u I would not turn the light off run it 24/7 man fine for veg
Where r u taking the temp from?
Move light closer till u have required temp
Plants always start slow then they will explode
Run light at night and have dark periods during the day so stays warmer during the night
Do not vent if u don't have 2 or vent less like vent for 15 mins every hour
17 days from germ hey ur not doing to bad
I would water a lot less at that size say 1 cup of water a day and if soil is still wet 1 inch down don't water till it's dry 1 in down or 2.2 cm down
Here my last grows seedling at 4 days image.jpg2 weeks later I had this I have the opposite problem u have my outside temp is hot like 30

Here the same plants after 2 weeks about when I start 1/2 str nuts image.jpg
 

weedenhanced

Well-Known Member
To reply to a certain person so they get a alert hit reply at the bottom of there comment and they will get a alert also if u like there comment
 
Thank you for your replies everyone, here is some pictures of my grow, I dont know they just dont feel right.

When i came home this morning i noticed that overnight one of the plants had developed brown spots on its fan leaves, Does anyone know what it is? could it be stress related to when i transfered them to bigger pots?

I havent used any NPK fertiliser yet. just rootjuice and bioheaven from biobizz and i have been very careful with it.

And, when they are growing slow like they are, can i just extend the veggie phase with a few weeks and not lose any end yield or potency or has the harm been done?

Oh and these pictures is taken at day 17 from seeds.
 

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here are mine at around the same age https://www.rollitup.org/t/look-small-for-2-weeks-from-seed.853332/#post-11130758 , i vegged for 5 weeks and now they stand over 5'.
Thank you, but if you ask me, then yours looks more developed than mine and if they are 2 weeks old then they should be around ay 14-15 right? mine is at 17 and well, i dont know. its going be very interesting to start my new growth in a few months, then its way hotter in the addict and i can figure out if its the temperature or something else. those tiny brown spots on your plant did they get worse? and what was it?
 
Okay so i turned off my exaust fan and with the lights on, the room is at 22-23 celcius and humidity sits at 60% i could feel the difference as i opened the tent, that moist, warm and earthy smelling air, it felt much better and i hope my plants like it better aswell. i wonder with plants that size how long i can keep that tent sealed off without any fresh air in it.

My previous humidity for the whole growth have been 20-30%
 
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