Yellowing leaves

lovelygrow2019

New Member
Any ideas what is going on with my plant? I have 4 plants growing currently the other three look okay but this one is turning yellow. This is the third week in flower. Northern lights I feed general hydroponics grow, micro, and bloom, Cal mag with a little molasses, and a small amount of honey. I have rural well water but I use ph down to bring the ph down but I'm clueless. Should I flush this plant? The plant is the first plant on the left side.
 

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Aussieaceae

Well-Known Member
Soil medium - fox farm ocean
I water on Sundays
Honey 1/4 tsp weekly just started adding honey during flower
Mollasses 1/2 tsp weekly
Temperature is currently 67 degrees.
Ok, so nutrient on Sunday with the water, or nutrient on a separate day?
How many times in a week is it getting water, whether nutrient or none?

What are you adjusting ph to?

Have you a means of checking the ph of your soil?
 

Renfro

Well-Known Member
You want a pH of 6.5

How much of the GH nutes are you adding per gallon? Looks like a nitrogen deficiency. Whats your PPM?
 

lovelygrow2019

New Member
Ok, so nutrient on Sunday with the water, or nutrient on a separate day?

What are you adjusting ph to?

Have you a means of checking the ph of your soil?
I water and feed on the same day.
I am adjusting the pH to 5-6
I do have a ph meter for the soil. Let me check that real quick and I'll let you know
 

Renfro

Well-Known Member
Also, thats not enough light by the looks of things. May be that the plants is just ditching leaves that arent getting enough light.
 

Aussieaceae

Well-Known Member
You want a pH of 6.5

How much of the GH nutes are you adding per gallon? Looks like a nitrogen deficiency. Whats your PPM?
I was thinking the same. But it's the general droop in that area, that makes me wonder if it's something else.
Rot, drainage, toxicity etc.

What are your thoughts?
 

Renfro

Well-Known Member
5-6 is too low for soil IMO. aim for 6.5 or 6-7 if your using a less accurate pH reading.

Just got the pic of the pH meter
I don't trust pH readings on those type soil meters.
 

Renfro

Well-Known Member
You might wanna try this basic feed. The numbers are mL per gallon. You don't have to use the Si and probably not the calmag since you have well water. Like I said before you may wanna be using hardwater micro but I dunno the well PPM.

GH nutes room A run 2.PNG
 

lovelygrow2019

New Member
5-6 is too low for soil IMO. aim for 6.5 or 6-7 if your using a less accurate pH reading.

Just got the pic of the pH meter
I don't trust pH readings on those type soil meters.[/QUOT
5-6 is too low for soil IMO. aim for 6.5 or 6-7 if your using a less accurate pH reading.

Just got the pic of the pH meter
I don't trust pH readings on those type soil meters.
I do have another ph meter but I don't know how to check the soil ph. I will start using the 6-7 oh to see how the plant reacts. Is there anything I can do now to fix the yellowing or let it run its course until I water again?
 
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