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Yellowing in Pro-Mix

spadedNfaded

Active member
Veteran
The miracle grow perlite DOES have nutes in it, but the count on the back is so minuscule it shouldn't cause that much of a swing. I use it every run without every having a problem caused by it.

It looks like you're getting an N lockout due to low pH, bro.

Soil is soil is soil, pH range for soil is 6.5, always has been and always will be a good target pH.

Did you add lime to your mix? Promix is a great start being well-produced and mostly sterile (ie. no bugs) but it needs a lil amending to reach its potential.

6-2-2 will give you green plants, every time. 6 parts promix, 2 parts perlite and 2 parts EWCs. Once i switched to this method the problem were few and far in between!!!

I also have some experience with the floranova, it's a good stand alone but sometimes, with certain strains, requires a lil cal-mag suppliment. NOTE*** If you use powdered lime in your mix this is just like amending the soil with cal/mag.


- SubN
 

T-type

Active member
I fed at 1.8 ec and 5.9 ph today per pureknowledge's advice.

I ended up using about 1ml per gallon calmag plus, 1ml per gallon koolbloom liquid, and went to 1.8ec with floranova bloom. This was in ro water. ph up to 5.9


We will see what they do in the next few days.

It seems like it takes a lot of ph up to get it to move when you get closer to 6.0
 

T-type

Active member
Well I fed at 1.5 ec 5.8 ph on the 15th and 1.8 ec 5.9 ph on the 19th.

I am planning on giving them 1.8 ec 6.0 ph tomorrow the 22nd.

What do you guys think.

Here is a before and after picture.

Before


After 2 days of higher nutes


Edit: Probably should have opened the veg chamber and turned the light on so the light was the same color. Ooops
 
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