why could this be? not nute issue

Indagrow

Indagrow

Well-Known Member
Are those clear bottles? How do you know it's not nutes? Little more info on your setup would help

Your saying even in 25l pots the same issue occurred? Same strain? Same nutes?
 
M

mizhyisfizhy

Member
Yes clear bottles. Coke brand
Strain is blue mystic and I have a tent with 6 plants under a 400w mh. Small fan and ducted ventilation via roof
 
growman3666

growman3666

Well-Known Member
There is light bleaching in those pictures. My thoughts are that the bleaching is present because its coupled with an unbalance in your medium. A plant is more susceptible to a light burn or disease when it is deficient.
Id say that your plant isnt deficient because a lack of nutes but because of an imbalance in the soil causing a lock out of the nutrient. (Ph, too much moisture, lack of oxygen at the roots, etc)
 
SPLFreak808

SPLFreak808

Well-Known Member
Back it off from the light and take better pictures.

It looks to be in flower, however there are plenty of things that can cause this problem alone, here's a few

-Overwatering or bad drainage

-Lockout due to nutrient build up, this can happen VERY easily in clear/milky pots exposed to light or high ambient heat.

-Just a hungry ass plant

A 400w HID will further accelerate the problems untill corrected, back it off and be more specific about what type of soil and exactly when problems started in order.
 
growman3666

growman3666

Well-Known Member
mizhyisfizhy said:
Done research yes mag deficiency. Not over water but water ph is too acidic. Does anyone know how to fix soil ph that is very acid?
Click to expand...

Dolomite lime is a good buffer to add to a soil mix to keep ph in a healthy range. It is also a good source of cal/mag as well. Even with this amendment you still will have to ph out your nutrients before feeding, as with anything else minus a few nutrient lines that have heavy heavy ph buffers and claim you dont have to ph it at all. (I wouldnt touch these products with a ten foot pole.
What is your ph testing at?
 
M

mizhyisfizhy

Member
I don't have a digital meter but its really high in acid. Its a strip that changes colour and it tests blue like 4-5 ph I think . I tested the tap water compared to tank water I think ill use the tank water from now on. I should have from the start really to save £
 
Nugachino

Nugachino

Well-Known Member
Lime/ dolomite lime would drop the pH. And if it goes too low. Use some sulphur to increase the pH.
 
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