Rust spots need help newbie

Graphmo · Nov 27, 2021

Hi, im havong issues with rust spot. Im in Mother Earth coco/perlite. Was using fox farm trio. 18/6 and ph 5.7-6.0. Ive tried giving extra calmag no reslove. I did a run off test and the ph was 6.8 and 800 ppm. Flushed with 15 gals each and feed normally to no reslove. It seems to be progressing need help bad. Thx

GNick55 · Nov 27, 2021

Graphmo said:
Hi, im havong issues with rust spot. Im in Mother Earth coco/perlite. Was using fox farm trio. 18/6 and ph 5.7-6.0. Ive tried giving extra calmag no reslove. I did a run off test and the ph was 6.8 and 800 ppm. Flushed with 15 gals each and feed normally to no reslove. It seems to be progressing need help bad. ThxView attachment 1192293 View attachment 1192294

i’m not 100% but i think you missed the increased need for calmg..
though i’m not a coco grower, but you should get some replies here soon..

GNick55 · Nov 27, 2021

you see any little bugs around?

Graphmo · Nov 27, 2021

GNick55 said:
i’m not 100% but i think you missed the increased need for calmg..
though i’m not a coco grower, but you should get some replies here soon..

Thx how much extra was needed im giving 5ml per gal.

Graphmo · Nov 27, 2021

GNick55 said:
you see any little bugs around?

Nope I had a gnat larvae but was treated with azamax.

GNick55 · Dec 2, 2021

Graphmo said:
Thx how much extra was needed im giving 5ml per gal.

hopefully a coco grower can help you out, one will reply soon..

GNick55 · Dec 2, 2021

GNick55 said:
hopefully a coco grower can help you out, one will reply soon..

maybe if @Aqua Man is available he will help out..

SofaKingHigh · Dec 2, 2021

Watch for salt build up with fox farm. How often are you watering and what exactly are you feeding? I ran fox farm last grow and had similar issues. Aqua man helped me out and I’m sure will chime in when he’s on.

SofaKingHigh · Dec 2, 2021

Looks like it may be a ca lockout or deficiency. What size pots are you in? Did you flush because you had high runoff ppm?

Aqua Man · Dec 3, 2021

GNick55 said:
maybe if @Aqua Man is available he will help out..

Hey brother hope all is well.

OP can give give details of the following (please answer all of them fully)

Source water ppm?

Nutrients used specifically how much of each and in what order are you mixing them?

Any other additives used?

When and where did this start on the plant?

Pot size?

Volume of water given per fertigation and frequency?

Hiw are you removing runoff?

How do you determine when to water?

Light make, model and distance?

Assuming thus is an autoflower?

Temp and humidity day and night?

Air exchange equipment and if not 24/7 the the intervals your using.

I know it's alot and there may be more but garbage info in means garbage info out so details matter

Observationist · Jun 19, 2022

Rust spots need help newbie

Rust spots need help newbie

Graphmo

GNick55

GNick55

Graphmo

Graphmo

GNick55

GNick55

SofaKingHigh

SofaKingHigh

Aqua Man

Observationist

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