Magnesium deficiency

[1sttimer]

Is it magnesium deficiency?

 

[PRIMO]

Maybe. Maybe not.

 

[Canyon Grower]

A photo is a necessity before we can pontificate.

 

[1sttimer]

They 4_5 weeks old were dark green leaves now turning limey /yellow with brown spots

 

[Californiakid]

Do you ph your water? Which method do you use to check and adjust ph?

How big are the pots the plants are in?

temperature? Highs and lows? Is 19.3 a consistent temp? Or does it get colder?

This is a necessary start to determine what is wrong with your plants. To guess based on a quick look can lead to more problems.

 

[D.A.A.S.69]

Great advice CaliKid

 

[PRIMO]

Everybody who is going to grow the weed needs a bottle of cal-mag give her a tsp every other feed. Even when there are no issues.

 

[kingfish]

Been growing for about 10 years now and never once used cal-mag.