My ph meters keep showing different amounts and don't seem to respond to ph changes, but they always read the reference solutions correctly.

[GeorgeCloney]

If you learn to understand input PH, root PH and run off PH...you will be a better grower( better than 1/2!!)...
Learn about VPD, you will be better than 75%...
Study PH, VPD,and DLI...
In 1 week you will know more than most people here!.
Putting this knowledge to use grasshopper will take a lifetime to master.
( Some old farts are smiling reading that last line fully understanding WHO said this...).

 

[thebombhaha]

If you learn to understand input PH, root PH and run off PH...you will be a better grower( better than 1/2!!)...
Learn about VPD, you will be better than 75%...
Study PH, VPD,and DLI...
In 1 week you will know more than most people here!.
Putting this knowledge to use grasshopper will take a lifetime to master.
( Some old farts are smiling reading that last line fully understanding WHO said this...).

I'll definitely refer to this. Let me ask you a question concerning light setup. How important is it when it comes to yield? I've never upgraded from my 1x1000w MH/HPS setup. Would I yield way more with QBs like Invisible Sunlight?

 

[GeorgeCloney]

Short answer, no..
You will yield more by better balancing the plants environment .
Humidity/soil ph/feed rate/light intensity ( study PAR)...and PAR rating for your particular light.

Balance is key..
Force feeding more nutes with the expectation to grow bigger only means more light needed.
( without burning the plant!).
Is your goal more pot?...or better pot?...
What you want/expect will train you to get to that goal.

More cannabis, is not better Cannabis.
Although we all agree more cannabis is always a good thing.
More great cannabis is the challenge.

This is what makes your friends ask....where did you find this???.

And with pride you will answer,...
You cant, you need to grow it...
Like I do..
( rubbing nails on chest )

 

[Tom Bombadil]

ph... lol.
never heard of it!

 

[Bantersaurus]

I ended up buying an Apera PH20. My plant just keeps getting more yellow no matter what I do and I thought I really had it the last feeding.

How much do you guys think I could get out of this guy? I'd be happy with 15 grams, honestly.