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What's the ppm of your runoff?

I was feeding every three days, must not had enough runoff to flush old nutes out. I only foliar fed once when the deficiency showed up.

Lol, uhh other than the "it's trash" comment I didn't understand anything you posted, anything constructive?

Sorry my shit is showing it not posted and then showing it posted 3x

Whats your pH?

Whats your pH?

Whats your pH?

Lol look at my post.... U need to check your runoff. They look alot like mine. It looks mine had a salt build up and caused the medium pH to drop below 5.5 causing a calcium deficiency. Check your pH and ppm of your runoff by flushing with 7 pH water

Looks like over fert or pH problem

Promix isn't soil, it's a soiless medium, sphagnum peat moss and perlite mostly

Oh I am using Jack's classic, 1/4-1/2 tsp gallon. Ppm is around 250 so 800+ coming out has gotta be causing the low pH. Promix comes PhD to 6.2 so adding dolomite lime and the runoff is 5.4-5.6 something is array with salt build up

I figured it out..... Salt build up, I checked the ppms of the runoff and it came back at 800+ lol, that caused the pH of the medium to come outoat 5.6 watering with 7. So word to the wise, if you are supplementing calmag and u start having a calcium deficiency, it's probably your medium's pH...

Just fed at 5.8 and runoff was 5.7

Soil looks a bit dry for the sprouts.

Not sure wtf to do to fix. Using Jack's classic with calmag plus in promix bx. I've been feeding at 6.2 and the deficiency has progressed. I've added dolomite lime, flushed the medium, and watered with calmag plus at 5.8. Still the deficiency is getting worse. Tried foliar feeding with Epsom...

Not sure if this is a pH problem or what.... Feed with 6.5, runoff is 6.7. Photos were taken right at lights on.

6-2-18

"Works well" as in harvesting more weight than untopped? And could you please link some side by side grow journals showing the results? Thx for the reply

Okay so I have 5 Fast Buds GG autos in a 4x4 tent with a 8" Hydrofarm Radiant air cooled 600w hps horti eye/6" inline fan, and a "300w" 180w actual draw Bloomspect LED. Temps stay at 80-82, RH 40-60%. Beans popped on 4-20-2018. I added a scrog net, topped 3 of the plants at the 4th node. One of...

I'm running 5 auto gorilla glues topped and scrogged in 5 gallon buckets with plenty of wiggle room at week 4