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Calcium deficiency?

Farf89 14 Replies 4,202 Views
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Farf89

Farf89

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#1
Hey guys! i got a little problem with my plant i'm in week 6 of flower and some leaf are not looking great specialy the one on the top!
 

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#2
Have you tested your leech water? Soil pH can have an effect on calcium uptake. Are you using an acidic fertilizer?
 
#3
  • i'm in dwc and i use sensi bloom ph perfect! i d'ont use nothing else execpt advanced nutrient senzyzym! im not sure if it's a deficiency or excess of something it's my first grow so im a little bit lost here
 
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#4
Im no DWC guy but I do know that mineral salt fertilizer will slowly lower the pH of your soil/media over time. This acidity will lock out calcium regardless of whether its available to the plant or not. Recently I've been dosing the soil before planting with dolomitic lime. 2tbspn/gallon. It will help to maintain your pH in the substrate. Its not a fast fix but its a safer course of action than more aggressive adjustments using potassium silicate for example.

Whats your water pH?
 
#6
#7
I swore off PH perfect threads but.... I think @Beachwalker is 100% correct but the question is why. You have over fed plants at some time but from what i can see your using the nutrients properly. They should be used with RO water also and never adjust the PH. Humidity will play a big role in nutrient uptake.

What type of DWC? single bucket im assuming?
How often are you doing water changes?
How much water per day are they drinking?
What is the temp and humidity?
Pics of the roots also pls
 
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#8
Aqua Man said:
I swore off PH perfect threads but.... I think @Beachwalker is 100% correct but the question is why. You have over fed plants at some time but from what i can see your using the nutrients properly. They should be used with RO water also and never adjust the PH. Humidity will play a big role in nutrient uptake.

What type of DWC? single bucket im assuming?
How often are you doing water changes?
How much water per day are they drinking?
What is the temp and humidity?
Click to expand...

Aqua Man said:
I swore off PH perfect threads but.... I think @Beachwalker is 100% correct but the question is why. You have over fed plants at some time but from what i can see your using the nutrients properly. They should be used with RO water also and never adjust the PH. Humidity will play a big role in nutrient uptake.

What type of DWC? single bucket im assuming?
How often are you doing water changes?
How much water per day are they drinking?
What is the temp and humidity?
Click to expand...
yeah i got 3 rdwc 5 gallon bucket, i do my res change each week at 70% of the advanced nutrient chart, they drink one gallon a day maybe less and since 2 day the temperature rise a lot here it's 30 degree and like 60% humidity and i can see the plant getting worst because of that most of the time i keep the tent at 40% humidity and 22-24°. it's only the leaf at the top the other are good
 

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#9
Farf89 said:
yeah i got 3 rdwc 5 gallon bucket, i do my res change each week at 70% of the advanced nutrient chart, they drink one gallon a day maybe less and since 2 day the temperature rise a lot here it's 30 degree and like 60% humidity and i can see the plant getting worst because of that most of the time i keep the tent at 40% humidity and 22-24°. it's only the leaf at the top the other are good
Click to expand...
how big is the res? or there is no res?
 
#11
Farf89 said:
no res i use the 3rd bucket to make my water change!
Click to expand...
OK so you have about 3.5 Gal of water to start. So you need to write down how much you are adding back. When that total reaches 3.5gal then you need to do a res change. This could be every 2-3 days in flower. That will keep the nutrient ratios stable and prevent any lockouts/deficiencies. This is why RDWC is favorable.
 
#12
Aqua Man said:
OK so you have about 3.5 Gal of water to start. So you need to write down how much you are adding back. When that total reaches 3.5gal then you need to do a res change. This could be every 2-3 days in flower. That will keep the nutrient ratios stable and prevent any lockouts/deficiencies. This is why RDWC is favorable.
Click to expand...
ok i will watch this! thx for your time really appreciate!!! temp should lower soon too so i will keep working on this!!
 
#15
at some point

they got the kfc tip burns

he ever come across with the ppm

flush reset

and everything beach and aqua said

if nothing n no one else

i just did a quick scan

as the big dogs/ocean bumz

already got ur back

not to diminish EVERYONE who weighed in

i just know aquaman is clearly a dirt sign

and makes me feel extremely guilty

about ignoring my own flush
 
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