YELLOW ANS BROWN SPOTS/ EDGES help please

cxms

Member

• Dec 30, 2020

• #1

hey guys appreciate any help and info

day 30 of flip to 12/12

canna newts
5ml/ per gal cal mag

hydro flood and drain in rockwool

 

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Beehive

Well-Known Member

• Dec 30, 2020

• #2

What's the humidity?

 

cxms

Member

• Dec 30, 2020

• #3

Beehive said:

What's the humidity?

Click to expand...

52%

 

Beehive

Well-Known Member

• Dec 30, 2020

• #4

cxms said:

52%

Click to expand...

Next step. What's the PPM of the fert solution?

 

cxms

Member

• Dec 30, 2020

• #5

Beehive said:

Next step. What's the PPM of the fert solution?

Click to expand...

ppm 1500
ph was 6.7 (oops) back down to 5.9 now
canna newts
hydro , rockwool , flood and drain
82° with CO2
52% humidity
Week 5.5 12/12
Day 31 12/12
Cal Mag 5ml/gal
Magnesium 4ml/gal

 

cxms

Member

• Dec 30, 2020

• #6

cxms said:

ppm 1500
ph was 6.7 (oops) back down to 5.9 now
canna newts
hydro , rockwool , flood and drain
82° with CO2
52% humidity
Week 5.5 12/12
Day 31 12/12
Cal Mag 5ml/gal
Magnesium 4ml/gal

Click to expand...

Led lights Growers choice 720

 

Beehive

Well-Known Member

• Dec 30, 2020

• #7

Here's how I'm looking at your plants.

I use synthetic fertilizer, ro water. At that stage, early flower. I'd be running 700-750ppm. With 700 being the target. I wouldn't go past 800.

When I read 1500ppm. Given the problem of the plant. The PPM is way-way too high. 1500 is twice the dose. Plus its expensive.