"Almost ready" to harvest light green plant

[Mr. Cheetah]

Thank you very much Jimmy for your help!
I'm using a soil mix that is 33% peat moss 33% compost 33% perlite + vermiculite and the pot it's a DIY fabric pot that should be around 4 liters. I was planning for something smaller to keep my plant small but in the end the plant is small anyway! (probably because she was born with only one cothyledon and no leaves...a rough start!)

You suggest to lower the bio grow 'cause she doesn't need much nitrogen in flowering. To be honest i'm confused right now because I did a little reserch an I've just read that probably my plant actually has a Nitrogen deficiency. I found this definition on growweedeasy.com(unfortunately the rollitup guide "Guide to Nutrient Deficiency or Toxicity" has 99% of pics missing so it's hard to find the solution):
"older, lower leaves on your plant turn yellow, wilt away and eventually die. The plant typically appears pale or lime-colored."
This is exactly what is happening to my plant. Some old and low leaves, but even some higher leaves, turned yellow and fell, and the whole plant looks light green/lime colored.
So I don't know what to do because I can't find NPK values of Bio Bizz products to figure out if I should lower bio grow and increase Bio bloom or even stop with bio grow and add something else like bio haven. If it's really a deficiency I don't think I need to flush the soil I should only change the nutrient, but how?

I don't know if it will be ready in 2 or 4 weeks I'm willing to wait what ever it takes!

My grow room is 1x1 foot, 35x35 cm I've read that around 45 watt for every square foot it's ideal for grow room that uses common led bulb because the light it's strong but not too strong so you can keep it way closer to the plant and have a real micro grow room(I'm planning to built a 20x20cm super stealth grow room for the next grow, I'm aiming for tiny plant with decent yield. even 10-15 g it's fine for me) with plenty of light. My plante is under 55W and 5250 lumen.
My guru for this type of light is Blynx on ICmag forum. He has a 226 pages thread on this topic, 10 years of experiments with micro grow from cfl to led lights. He even did grow one plant under only 3x 10watt 3000k led bulbs and he got 33,5g of dry buds. But that was an experiment he usually use 6 to 8 10watt bulb depending on the dimension of the grow room.
Here are two pics of the 3x10 watt plant
View attachment 4585028View attachment 4585029

looks kind of creepy sexy lol nice! how much yield overall?

 

[Micro G.]

Thank you Mr.Cheetah
It's too soon to know. Jimmy said I will have to wait about 4 week but for what I can see, stigmas(or pistils) are becomincg brown and curling at a pretty fast rate... I still think that it will take one, one and a half week.
If you would like to know about the Super tiny grow room, 20x20 cm, it's just an Idea because I just want a super tiny grow room with a tiny plant inside that can produce just enough for me and my friends to have one or two joint once in a while.
This is what I'm aiming for:

I'm not going to use those 60ml plastic cups but the idea is exactly the same. Here is what this guy (Stunted.art on instagram) can do wit just 1 liter pot.

It want be easy, but it's going to be an experiment just for fun. If I only get 10g or less of yield it's perfectly fine for me...I thin I can go on for one year with just 10 grams! This is more because it is fun!

 

[Micro G.]

In the last two hour the weight loss slowed again from 5,6 g/hour of yesterday to the 4,6 g/hour of this morning to 4g/hour of the last two hour.
the total weight loss since yesterday it's 175 g, so(having no data for the first 12 hours after the last watering)the 240 ml of water of two days ago is gone but it looks like there is still some water from previous watering...I'm might even wait until tomorrow to let it dry even more...The plant still looks fine.

Just for fun I've checked the PH of the water-nutrient mix again and it is still on the rise.
First solution starting at 6,35 went to 6,80 and now is at 6,91 for a total of +0,56 in 7 hours
Second solution starting at 6,91 went to 7,20 and now is at 7,33 for a total of +0,42 in 7 hours
I really didn't expect this....

 

[Micro G.]

This is the last picture I took. Three days ago she had not a single brown hair. We'll see!

 

[Micro G.]

In the end I waited for almost 72 hours since the last watering. I could have waited a little bit more, but I could see some leaves start to bend down and that is a sign that the plant was getting thirsty. The total weight loss till now was 212g(but I have no data for the first 12 hours so it should be around 250g or even more). I've now watered her with 150ml of water-nutrient mix wit a PH of 6,2.

The PH of the two solutions I've prepared yesterday are still on the rise one at 7,56 and the other at 7,28. I'm keeping one just to see where it can arrives. The other one, I toss it in the garden and prepared a new fresh one that I've just used.

I'm curious to weight everything tomorrow, 24 hours after and see what happen.

The conclusion is that, for now, the problem was over watering with a too high PH nutrient solution. So both too much water and the impossibility to absorb nutrients...not cool

 

[Micro G.]

Hi guys! Today I've already checked the weight and it seems like 150ml is a fair amount for a daily watering. Yesterday after I watered the plant I checked the weight and it was 1871g and now it's already 1755 so 116 ml of water have already gone, but to be sure we have to wait an weigh everything again 3 hours from now.

The "problem" is that the plant did't really like this change in watering. 72 hours without feeding her may have help her in the long term, but we have to wait to see it this is true. On the other hand the light green/lime color has become more evident. The bud sites were still green but now the discoloring has gone a bit wild. Everything look way more yellow overall.

 

[Budzbuddha]

Im confused by this “ weigh a wet pot “ kind of thinking ... it really doesn’t give any useful info. Moisture will evaporate regardless of what the plant uses in a set amount of time. Everytime you water the moisture content changes so now what as far as numbers ?

Plant doesn’t need to be “ saturated “ in medium , only enough moisture for plant to pull from and nothing is being leached from or myco web flooded. Keep grows simple ......

Just run a bloom nute thru that plant that has some nitro in it. Ph that feed to 6.5 and water in. Lift pot , feel the weight. Leave plant alone. Check pot in 3 days - lift it . If it has “ any “ kind of heaviness , its still fine. If pot is light ..... BOOM ... time to water .

Really overthinking this .... it’s literally just a plant.
Not some special life form.

 

[PadawanWarrior]

Thank you Mr.Cheetah
It's too soon to know. Jimmy said I will have to wait about 4 week but for what I can see, stigmas(or pistils) are becomincg brown and curling at a pretty fast rate... I still think that it will take one, one and a half week.
If you would like to know about the Super tiny grow room, 20x20 cm, it's just an Idea because I just want a super tiny grow room with a tiny plant inside that can produce just enough for me and my friends to have one or two joint once in a while.
This is what I'm aiming for:
View attachment 4587433
I'm not going to use those 60ml plastic cups but the idea is exactly the same. Here is what this guy (Stunted.art on instagram) can do wit just 1 liter pot.
View attachment 4587441
It want be easy, but it's going to be an experiment just for fun. If I only get 10g or less of yield it's perfectly fine for me...I thin I can go on for one year with just 10 grams! This is more because it is fun!

That guy has some serious skills. I know I couldn't get results like that in a solo cup. @Renfro maybe, lol.

 

[Micro G.]

You are absolutely right Budzbuddha!
But these stuff are way easier for someone like you that has a lot of experience.
I'm not planning to do this every single day forever and ever. I did this because something was going wrong and the only valuable way to fix the problem in a short period was, in my opinion, was to get some data. That's why for 3 days I've checked the weight and now I'm using PH meter to prepare the feeding solution(i did know nothing about te importance of the PH).
I have no doubt whatsoever that you with your experience can manage to evaluate when to water a plant by feel its weight. But maybe you have a 4 gallon pot with a 2 feet pant that need 2 liters of water every 2 to 3 days.
My pot is 1 gallon or less an my plant is 7-8" high and the difference of wait between after and before watering is 150g.
I will not trust my capacity to feel the difference between 1750g and 1850g.

I'm here to learn from you guys so everything you have to say is very much appreciated!

 

[Micro G.]

You are right PadawanWarrior.
I think this is absolutely fascinating. Of course the little the pot the harder it is. He succesfully grow a plant in a 3ml...yes 3ml, i didn't write it wrong. Of course he got about 1g of dry yield from that plant but he simply enjoy to be "creative" with cannabis plant. A 3 ml pot means that you can't go messing around. Watering, nutrient, PH, light have to be 100% perfect. Of course a plant in a 3ml pot need to be watered 3 to 4 times a day and that's a pain in the ass.
He usually use 60ml pot and that is still hard. My plan is to try at least a 500ml pot(which is more or less the standard solo cup volume). Of course I know it will not be easy and I might run into problem but that's ok. It will be both for learning and have fun!

 

[JimmyNuggs]

@Micro G.

Really overthinking this .... it’s literally just a plant.

This...

Also

grow a plant in a 3ml...yes 3ml, i didn't write it wrong.

What? The cap off my biobiz is 5ml...?!?

And get that nute mixture's pH down further. Get what you need mixed test the PH to 6. And feed.
Think going up to 7 is starting to get a little risky... But - only mho.
Solo cup king btw (not me: an acquaintance)

 

[Micro G.]

This guy...he is an alien

 

[Micro G.]

Hi Jimmy nice to hear from you again!

Well, now that I have a PH meter and I'm learning something every day, I decided that watering with the righ PH wasn't gonna do anything if the soil PH was wrong so I collect some soil and run some 6.5 PH water trough it and then tested it. The PH was around 7,8.

In that moment I decided to flush with 6,0-6,5 water until I had at least 6,8 PH reading from the flushed water. It took around 20 liter before reading PH 6,75.

In that precise moment I regret not having used cocosoil because the soil was retaining a huge amount of water. But I really think it needed to be done.

 

[Oakiey]

You do realize you're flushing money out the bottom your buckets fertilizer companies love it

Flushing can cause problem also
Just don't overfeed your plans

You know some of my buckets only get water every few weeks, with ony a third of a dose of ferts

 

[JimmyNuggs]

Its a labour you want to do your best to avoid if possible: if only for the sheer bloody mess of it. But its done now and regardless of the lost nutes, your girl will thank you.
Your pH meter will become the pivot for all going in n out so keep as directed, it'll be your best friend for next few months. If you feel like expanding things, maybe worth looking for a tds/ec meter - which will allow honing your feed even more. Always worth researching at least.
.

 

[Micro G.]

I didn't over fead the plant, not intentionally. The problem was that I didn't know the importance of PH in soil and in water so I ended with a nutrient lockout. I haven't done it on puropse...
Flushing is the only solution with a nutrient lockout for wrong PH level. Flushing is not always good but living the soil at almost 8 PH wouldn't have helped either.

 

[JimmyNuggs]

This guy...he is an alien
View attachment 4589452

For fuck sake...!
All I can say really.

 

[Micro G.]

If you feel like expanding things, maybe worth looking for a tds/ec meter - which will allow honing your feed even more.

It came in bundle with my PH meter! I only need to understand ho to use it now.

I really hope to not stress my plant any further...can't stop thinking about her...she is so close to harvest time, I don't want to mess up everything, not more then I've already done! The buds are already bigger then I hoped, I just hope they will survive to this mess and mature soon an well.

 

[JimmyNuggs]

You're doing fine.
Just let equilibrium return to her and she will carry on (she IS a weed after all!).
Tds/ec evaluations will help you fine tune your feed, but no need to rush it.

 

[Micro G.]

The only good thing is that trichomes looks cloudy (to me at least) so it kinda was the right moment to flush