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The solution is Hanna 1500ppm HI 70442 and I found a thread where someone posted..."1500 {HI 70442} is used for calibration at .7 conversion factor." Do you think my pen is correctly calibrated? - thanks

So i bought an Oakton TDS Ecotestr today and the sales associate sold me 1500 calibration solution... so I when I tested the solution it was way off so I calibrated it to 1500. The solution was by Hanna with no indications as to which conversion .5 or .7 will read @1500. Did I just totally...

The solution is Hanna 1500ppm HI 70442 and I found a thread where someone posted..."1500 {HI 70442} is used for calibration at .7 conversion factor." Do you think my pen is correctly calibrated? - thanks

So i bought an Oakton TDS Ecotestr today and the sales associate sold me 1500 calibration solution... so I when I tested the solution it was way off so I calibrated it to 1500. The solution was by Hanna with no indications as to which conversion .5 or .7 will read @1500. Did I just totally...

thanks for the advice, i just flushed them and the runoff was hi @ 6.5! - after 4gal. the runoff was 5.7(5.5ph going in) - now do i wait to feed or do i add nutes now?

so... the brown/copper spots are showing up on newer leaves (not the new growth but leaves above the ones in the photo) it appears to be getting worse not better. I have just watered @1/2 strength nutrient solution on thurs. (it is now Sat) and I wasnt planning to water again until monday...

If you are going to flush your plants (mine are handwatered in rockwool) to clear up a ph problem or nute deficiency... do you flush with plain ol' ph'd water or do you flush with ph'd nutrient solution? - thanks

@Mr.Grønn- double checked and yes, on the under side of the leaves the center vein of each petal is red about half way through turning green... what does that mean?

under sides of leaves look healthy with no red veins,,(wrong see following post) the stems are red/purple though..im watering them every 3-4 days, i let them dry out a little till the rockwool is significantly lighter then when they are soaked, though right before i took those photos I watered...

i just fed her @ 1/2 strength yesterday - could this just be an all around nute deficency? should i just stick with the plan and use the Lucas formula @1/2 str for now and hope that everything balances out or do I need to add something to the mix? - thanks bunches

Im going to re-do the math. Lucas says his formula would put ppms at 800-1200. So, if the avg. ppm of tap water is 140-400 we could determing that for each ML/2ML of Micro/Bloom is equal to approx. 100ppm. So if I do 1/4 str. which puts my ratio at 1.25/2.5ml then my ppm range would be...

I am using the 1 to 2 part Lucas Formula with GH Flora Micro/Bloom and was feeding 1/4th str which puts my ppm between 140-188 depending on starting ppm (i think, my math isn't what it used to be) Yesterday they turned 2 (weeks veg) and I upped the nutes to 1/2 str. which would put them close to...

Thank you, we agree that it needs more phosphorous... now since Im using the Lucas formula w/GH nutes does that mean add extra bloom? or does it mean I need to go out and buy another phosphorous specific product? OR? - this is my first grow, im learning, thanks for your patience!

Excellent! thank you for diagnosing my problem!!!... now for the solution? Would it be possible/recommended to foliar spray with a weak Flora Bloom solution in order to treat this deficiency?

I am also wondering if the spots being on just two of the plants which happen to be the only two of that strain... is it a picky strain or something involving nutes.

hi, i have 10 gals going and two plants (the only two blueberry) have a few curled lower leaves and dark brown patches - other 8 plants look good w/no spots or curling lower leaves - the two plants in question otherwise look healthy - this is week 2ish of veg, i am handwatering in rockwool...