Wilting leaves and brown spots - RDWC

[BurntByFire]

@BurntByFire I like to tell everyone to not sweat the small stuff, and that sometimes trying to over treat a minor problem can cause more harm than good, overall its hard to tell (entire plant shots are nice) but it seems like the rest of the plant is pretty healthy, just dial in the PH and nutrients, experiment with your other variables and you will certainly not be held back from harvest by a small issue such as this. good luck.

Thanks man!
I had fans blowing right on the plants which which was stressing the crap out of them hence the purple stems and was causing brown wind burn spots and not allowing them to breathe.
I thought it was strange that new growth was coming in fine with no issues just the bottom leaves....
Anyhow thanks for the help!

 

[DarthVaper84]

Nothing to do with water level if you have an air stone. Think about when there big most of the roots are under water. PH calibration can be done with baking soda. Mix a tea spoon into a glass of water. Stir it up. Ph should be 7.9 I think. Goggle to confirm.

Yeah... you should probably just invest $10 in pH cal solution. The route above will not be accurate.

 

[myke]

Yeah... you should probably just invest $10 in pH cal solution. The route above will not be accurate.

I use it a lot,doesn't matter what water ,always reads the same.Pretty cheap.

 

[DeepWaterDean]

Look what these guys are saying! They say anything below 6.2 locks out cal

There’s definitely differences in ph charts.

 

[BurntByFire]

There’s definitely differences in ph charts.

Exactly!!!

 

[myke]

You need to play with it a little. 3 yrs ago I was at 5.5 5.8 ish. Now I’m at 6.0 and keep it there. Seems to work. Different brand of nutes needs different pH maybe.

 

[5BY5LEC]

Just calibrate your meter with some bluelab 4 and 7. The $400 meter is only as good as its calibration. 5.4-6.2 PH don't sweat it otherwise.
Calmag - you need to calmag your water to like 150ppm before you add anything else. It is during this stage (early veg) which you will start to see cal issues, at least in my experience.
150ppm calmag + 300ppm base nutes and see how you do after a few days. On the 500 scale.

 

[BurntByFire]

Just calibrate your meter with some bluelab 4 and 7. The $400 meter is only as good as its calibration. 5.4-6.2 PH don't sweat it otherwise.
Calmag - you need to calmag your water to like 150ppm before you add anything else. It is during this stage (early veg) which you will start to see cal issues, at least in my experience.
150ppm calmag + 300ppm base nutes and see how you do after a few days. On the 500 scale.

Nice! I’m definitely going to try this!!!

 

[5BY5LEC]

Nice! I’m definitely going to try this!!!

Sweet. Let us know how it works out for you.
If you look at page 2 of my "uk auto" grow, you will see I posted some pictures of when I switched to RO and did not mind the calmag as I should have. Just something to reference.