Rusty marks on my babys

[Nash]

Hi. Quick run down
Grow room 1x1x2m
Exhaust is 6inch rvk think its the l1 and a passive intake.
Light 600watt400volt HPS
System wilma 4 11 late pot
Grown in canna coco pro
Using coco a+b at half strength
Water EC is around 1 so I'm trying to keep it light.
Also using some canna zym abit of pk13/14 and full strength boost
Room temp max 26.2 min 19.8
Relative humidity max 72min 51
Growing cream caramel auto and its 6weeks from sprout today.
My ph is around 5.8 atm but I try and mix it up abit and do it to 6.2 to try stop lockout.
And EC is 2.2 mS

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[Rebel]

Hi. Quick run down
Grow room 1x1x2m
Exhaust is 6inch rvk think its the l1 and a passive intake.
Light 600watt400volt HPS
System wilma 4 11 late pot
Grown in canna coco pro
Using coco a+b at half strength
Water EC is around 1 so I'm trying to keep it light.
Also using some canna zym abit of pk13/14 and full strength boost
Room temp max 26.2 min 19.8
Relative humidity max 72min 51
Growing cream caramel auto and its 6weeks from sprout today.
My ph is around 5.8 atm but I try and mix it up abit and do it to 6.2 to try stop lockout.
And EC is 2.2 mS

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In my experience with HPS as I used a 600Watt for years... They draw cal mag out just as much if not more than leds. I don't see it listed in your set up.I would recommend getting some and giving 1/4 recommended dose to start. That's cal/mag deficiency.

 

[djibra420]

Ph is too low and causes cal/mag unavailable... And that purple steam is indicator of cal/mag def

 

[Nash]

In my experience with HPS as I used a 600Watt for years... They draw cal mag out just as much if not more than leds. I don't see it listed in your set up.I would recommend getting some and giving 1/4 recommended dose to start. That's cal/mag deficiency.

Ye I've not used it as I thought my water was real hard I wouldn't need it. I'm going to have to make a trip to the hydro shop. I've tuned my ballast back down to 600 now.


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[Nash]

Ph is too low and causes cal/mag unavailable... And that purple steam is indicator of cal/mag def

I'm trying to hit different ph all the time so I don't lock anything out. Any suggestions for coco and perlite mix.


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[djibra420]

i dont have many experience in coco and perlite, but i have light mix with 30-40% coco and my ph is always the same (how i want it to bee)... its always arround 6.5-6.8 depending on the mix of nutes.
I only had problems when the ph was too high and if i didnt take it down at desired level.
Hope some one will have more info about the coco perlite use, but i would say to stick to ususal ph level (6.0-6.5)

 

[Rebel]

Ye I've not used it as I thought my water was real hard I wouldn't need it. I'm going to have to make a trip to the hydro shop. I've tuned my ballast back down to 600 now.


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In coco and perlite and 600W Hps you will need cal/mag. Not a lot but a bit for sure.

 

[Frogster]

Just a suggestion.... If your water is hard, you may already have enough "Calcium" but lacking in "Magnesium"

You may want to consider just adding some "Mag" if this is the case.

I would suggest something like this.... I have used it in the past with good success....

 

[Nash]

i dont have many experience in coco and perlite, but i have light mix with 30-40% coco and my ph is always the same (how i want it to bee)... its always arround 6.5-6.8 depending on the mix of nutes.
I only had problems when the ph was too high and if i didnt take it down at desired level.
Hope some one will have more info about the coco perlite use, but i would say to stick to ususal ph level (6.0-6.5)

I'm looking at soil in the future.


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[Rebel]

Hydro - Coco - Soilless range is 5.5 -6.5