Water, nute or ph issue??

[CBDfutute4]

My leafs get a black dotted yellowish on the middle portions of them

brand new rdwc setup

cal mag ?

Do I need ro water or can I use distilled that I have been? My brother treats water for a living and the distilled water ubuy at target is like 20 ppm

ph has been 5.8-6.3 range. It always moves a tiny bit as they

should I be 5.5?

i run general hydroponics nutes line 650ppm

 

[CBDfutute4]

I did a partial water change 6 days ago (11 gal out of 15) n it went sway

these are pics from a week sgo

 

[Aqua Man]

I did a partial water change 6 days ago (11 gal out of 15) n it went sway

these are pics from a week sgo

Can you give move info on conditions, nutrients, source water and ppm?

 

[chemistry]

Put up a pic of the whole plant, what are all the white bits on the leaves?

 

[CBDfutute4]

Can you give move info on conditions, nutrients, source water and ppm?

75f
Rh 60%
distilled water from gallons from store
durafoam room

4, 5 gal buckets w 1 as a res

 

[CBDfutute4]

Water is 69-73f

white shit is dust or Durafoam

I just changed my pump and did a lot of stuff in there.

I vac n wipe down w rubbing alcohol n hydrogen peroxide floors n low spots

 

[Aqua Man]

Yeah likely mag deficiency. When using RO you should add cal mag. Are you using any?

 

[CBDfutute4]

Yes. But I clearly need more

How many ml per gallon do u typically go ??

I’m using a 1 gallon distilled water from my grocery store. I tested it against my buddies ro n it was 20/30 ppm high

So I go a little light on gen hydro nute lineup

 

[Aqua Man]

Yes. But I clearly need more

How many ml per gallon do u typically go ??

I’m using a 1 gallon distilled water from my grocery store. I tested it against my buddies ro n it was 20/30 ppm high

So I go a little light on gen hydro nute lineup

Depends on the brand. Add cal mag until you reach 125-150ppm then add nutrients.

 

[CBDfutute4]

Ok

I was roughly going 8ml per gallon. Than 2ml hydrogen peroxide til I get uc roots & Than addthe gen hydro lineup last

Test total ppm

Dilute or added if necessary