what is this?

[wutwut]

too much led light? cal mag def / exc?? (ph 5.5-6.2 hydro, ppm 850 ghe micro+bloom and cal mag)

 

[Creeperpark]

too much led light? cal mag def / exc?? (ph 5.5-6.2 hydro, ppm 850 ghe micro+bloom and cal mag)

You need to raise your lights a little.

 

[wutwut]

You need to raise your lights a little.

already 60-70cm (340w quantum). still possible to light burn?

 

[Ultramarin]

are you using tapwater?

 

[CannaT]

What are your temps ?

 

[wutwut]

What are your temps ?

it says 26.5-31.5c so i guess 28-29c is close.
and in other tent with same model of meter it says about same temp without this problems

 

[CannaT]

it says 26.5-31.5c so i guess 28-29c is close.
and in other tent with same model of meter it says about same temp without this problems

Then those are root problems...I guess.
Pets,rotroot,PH...something like that.

 

[Ultramarin]

Then those are root problems...I guess.
Pets,rotroot,PH...something like that.

i guess that too. sometimes a calcium-overdose can also look like this, therefore i asked about tapwater. but if it looks different in another tent...

 

[TanzanianMagic]

too much led light? cal mag def / exc?? (ph 5.5-6.2 hydro, ppm 850 ghe micro+bloom and cal mag)

It looks like either calcium or phosphorus. Hard to tell without seeing the whole plant.

Are the GHE nutrients for hard or soft water? What is your tapwater's EC and pH?

 

[Dime]

Drowning roots and not enough air,imo

 

[wutwut]

Then those are root problems...I guess.
Pets,rotroot,PH...something like that.

nft hydro temp 19c

i guess that too. sometimes a calcium-overdose can also look like this, therefore i asked about tapwater. but if it looks different in another tent...

forgot to say other tent have different tap water about 80ppm when mine is 150ppm.

It looks like either calcium or phosphorus. Hard to tell without seeing the whole plant.

Are the GHE nutrients for hard or soft water? What is your tapwater's EC and pH?

so then it's maybe overdose both of them. it's ghe soft water.

 

[William76]

More than 1 problem by the looks of it,uv also got pm,76

 

[William76]

Leaves look covered in it?,76

 

[Koondense]

My guess...
Low root temp, P lock, needs more oxygen and higher temps to increase the metabolism.
Low relative humidity of air if temps are in high range.
Oh, and hard water of course.

Cheers

 

[led05]

It looks like either calcium or phosphorus. Hard to tell without seeing the whole plant.

Are the GHE nutrients for hard or soft water? What is your tapwater's EC and pH?

Ca & P deficits for sure, few micros too - can’t say why just what the plants tell/show me

GL wutwut

 

[CannaT]

Tap water isnt good for growing but shure it can do the thing.
Best is to use R.O. than ad salts.

heavy metals,parts of sand,chlorine...will always react with something and plants cant use some elements cuz of that.

Its hard to tell what is wrong cuz many things can go wrong in that way.