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Hey @Rolltideroll0420 , did you and your brother ever solve this? I've had similar symptoms in my plants (veins turn yellow, edges burn up) in my thread here: https://www.rollitup.org/t/early-signs-of-yellowing-veins-dying-leaves.1074024/ In my case I think the issue was overfeeding, but it's...

I agree they all look worse - except for the basil and rosemary, which seem to be unaffected. For bubbles I'm using a 20W pump: https://www.amazon.com/dp/B08DXGQN3T?psc=1&ref=ppx_yo2ov_dt_b_product_details Tomorrow I can try swapping out the res, maybe all the PH adjustments and extra CalMag...

@ProPheT 216 so far I've just been adding a little H2O2 here and there but no other root treatment. After week 2 I suspected something might have infected the res so I swapped out the entire container for an unused container that I scrubbed with H2O2. Is this really a sign of something killing...

@OldMedUser The roots are all long, thin and white. The water level is about 1 inch below the bottom of the net pots, but they do get pretty wet from the bubbler.

@twentyeight.threefive That's a good point, I'll avoid adding more CalMag. In my last grow I basically followed the GH feed chart for the first 2 weeks, but my tap water already had a high ppm (around 500ppm). The plants were very quickly overfed. Thread here...

@OldMedUser great tip about the sulfur in epsom salts! I'll keep that in mind and grab a bag from CVS. I actually downloaded that exact same deficiency chart a while ago (well mine has a "www.loudclouds.co" logo at the bottom, but same thing). After I nutrient-burned my first grow I picked up...

That's what I figured, thanks @curious2garden

Awesome, thanks for the info @OldMedUser and @Herb & Suds . Yesterday I was at 650ppm total, that was about 4ml/Gal of CalMag and 3ml/Gal of each of the Flora nutes in distilled water. I'll add the nutes slowly to get it back up to around 500ppm. Is it OK to skip the epsom salt since I...

OK thanks @Herb & Suds I'll slowly increase the nutes again and see how they respond. It's worth mentioning: the left 2 plants are commercial seeds (Equilibrium "Dark Cherry"), while the right 2 plants are bag seeds. That might explain the difference in appearance.

@Herb & Suds I was worried they were getting nutrient burned at 650ppm, so yesterday I diluted it to 350ppm. Is 650ppm really too low for them at this stage of growth? If so I'll slowly increase the nutes again and see what happens. EDIT: typo.

@zebracake were you able to identify the issue with your seedlings? Did any of them recover?

Another update: They're still growing super slow, still showing chlorosis and some of the older leaves are still dying. I've trimmed away the dead leaves. Is this the normal process of recovery or is there still something wrong? The PH is around 6.0 every day. EC was 650ppm, which I think...

@kubat I have some seedlings suffering from PH issues as well, did yours ever recover?

Here's an update: Got the new PH meter on Thursday and calibrated it. I've been lowering the PH in the res to about 5.9 as measured by the new PH meter. The plants are growing, but still in bad shape. I assume it'll take more time for them to recover if they ever do. Added another 1mg/Gal of...

@ProPheT 216 I took your advice and ordered an Apera AI209 PH kit. After searching the forums for info on PH testers, I see the cheapo Vivosun one I'm using is widely panned for its shit quality. And I'll rely more on my GH chemical test, I neglected it for a while because I assumed the digital...

They currently have 1ml/Gal of each of the GH Flora parts. I'll add 1ml/Gal more, I doubt that will burn them at this point. EDIT: typo

@Drop That Sound that's a good point, I just removed some water from the res. Thanks for the tip! I added the calmag early because I wanted to start with a much lower concentration of GH Flora. On a previous grow I followed the "Basic Feed Chart" on GH's website, which calls for 4.2/3.8/3.0 on...

@calvin.m16 yeah they're alive for now - but they're showing such distress early on that I don't believe they'll survive, especially since I can't pinpoint what causes this. @King Dude I'm hesitant to use soil in a net pot in DWC, the soil might crumble through into the reservoir. Right now I'm...

@ProPheT 216 lol yeah that one is rosemary. I use a digital PH meter and verify it with a chemical PH test. The digital PH meter is this one: https://www.amazon.com/VIVOSUN-Meter-Digital-Tester-Water/dp/B01M5IASHD And the chemical PH test is the one that comes with the GH PH kit here...

@MinniePerlite thanks for the tip. This is a DWC grow, so no soil. Just rapid rooters and hydroton in net pots over a 2 gal reservoir. The light is an LED Viparspectra p1000: https://www.amazon.com/VIPARSPECTRA-Upgraded-Spectrum-Dimmable-Hydroponic/dp/B083JVXHF6 It doesn't *feel* too hot to...