Help needed!

desperado-777

New Member
Buongiorno,
This is the first time i grow anything. I am growing 2 random bag seeds. I am at the flowering stage of 3 weeks i guess. I have a 100cm*60cm*40cm stealth box and at the vegetative stage and begining of flowering until yesterday i used 9 * 14w, 1521lumen, 6500k philips led bulbs, now i started to use 9 * 11w, 990 lumen 3000k oem led bulbs. Heat is around 25 C at the night cycle, and 29-30 C at day cycle. For a week or so, days are geting hotter in here so temperature of the set up is also increasing. And i started to use a fan and able to lower it around 29-30 C again. but one day it have gone around 35 C.
Tips of the leaves were getting yellower, like burning. So i googled it and might give a chance on PH deficiency, it looked like ph of the soil is higher than it should be. i have a primitve gauge for ph, light and moist. I have watered it a day before but i mixed 0,5lt water with some grape vinegar and give it anyway. and the next day i watered it again with 1 lt water and 3 tbspoon of grape vinegar to lower the ph of the soil. why? mixing grape vinegar with water made me feel like i am a genius, i felt like i am mixing a health syrup for my girls. yeah such irony! :(
when the day cycle hit 35 C, i have also watered with my mixture. and that is when everything went downways. next day my girls leaves droped and turn in to yellowish.
please see the photos i have taken today and give this brother a hand on how to bring his first grow back alive. thanks in advance. Cheers!
 

Attachments

Herb & Suds

Well-Known Member
I never ph soil and never use vinegar
I would do a flush and and find a way to lower temps
You can't really read soil PH btw
 

lime73

Weed Modifier
Do you water til run off? When you water is soil dry? Do you have an exhaust fan / fresh air intake? You running light on during the daylight or at night?
 

desperado-777

New Member
Do you water til run off? When you water is soil dry? Do you have an exhaust fan / fresh air intake? You running light on during the daylight or at night?
Fist of all thank you. i dont water till run off, i water 1lt in 2,5-3 days. Yes i water when the soil is dry. Yes i have an exhaust fan and fresh air intake very similar to the photo i just attached. i run light at night for cooler temps.
 

Attachments

lime73

Weed Modifier
One L , not enough , You will need to Run water through pot til you get good amount of run off coming out of bottom of pots, make sure you have a tote or tray to catch runoff to dispose of after you flush, basically this will help them get a really good watering, as you have been underwatering them and they are thirsty!
 

manfredo

Well-Known Member
They probably need more like 1 liter every day...They should bounce right back with a good drink. They look pretty good otherwise.
 

desperado-777

New Member
One L , not enough , You will need to Run water through pot til you get good amount of run off coming out of bottom of pots, make sure you have a tote or tray to catch runoff to dispose of after you flush, basically this will help them get a really good watering, as you have been underwatering them and they are thirsty!
Thank you soooo much. I am on way to flush it right now. Highly appreciated :))
 

desperado-777

New Member
35C is way too hot, plant metabolism will stop.
Thank you man. I think the same but i live in a warm place and 35 C was just a one night degree, normally it is 29-30 C. and i am trying to figure out how to decrease the heat. I am putting ice bags infront of passive intakes, i used fan. how much does the fan stress the plant?
 
Thank you man. I think the same but i live in a warm place and 35 C was just a one night degree, normally it is 29-30 C. and i am trying to figure out how to decrease the heat. I am putting ice bags infront of passive intakes, i used fan. how much does the fan stress the plant?
heat rises, you would need to push out this heat from the top.
Instead of more fan you should concentrate on exhaust.
 

Kassiopeija

Well-Known Member
. I have watered it a day before but i mixed 0,5lt water with some grape vinegar and give it anyway. and the next day i watered it again with 1 lt water and 3 tbspoon of grape vinegar to lower the ph of the soil. why? mixing grape vinegar with water made me feel like i am a genius, i felt like i am mixing a health syrup for my girls. yeah such irony! :(
overwatered + potential acid damage to roots
flush with clear water next time - only when the pots are light

have a 100cm*60cm*40cm stealth box and at the vegetative stage and begining of flowering until yesterday i used 9 * 14w, 1521lumen, 6500k philips led bulbs, now i started to use 9 * 11w, 990 lumen 3000k oem led bulbs. H
its barely 10k lumen... its not enough light.. plus, did you start to use reduced wattage in flower?
 

desperado-777

New Member
overwatered + potential acid damage to roots
flush with clear water next time - only when the pots are light


its barely 10k lumen... its not enough light.. plus, did you start to use reduced wattage in flower?
Grazie Mate. “Only when the pots are light” i m sorry english is not my mother tongue, can you please expand what do you mean by that?

I really know nothing about how lumen works. Please enlighten me? Is there a formula?
I decided to reduce the wattage to fight with over heating. In my mind Higher wattage = higher temperature. I may be unbelieveably wrong.

Do you have any suggestion to improve my set up for better yield?

thanks again. Cheers
 
Top