Yelowing and red syem, anyone know why

[LoveGrowingIt]

Just out of curiosity, what are your light, temperature, and humidity settings?

 

[polishbratwurst]

Just out of curiosity, what are your light, temperature, and humidity settings?

300W at 100%. 28-32°C at light time 18-22 at dark. Humidity at 38-55%

 

[polishbratwurst]

Plants' symptoms and appearance don't line up with the EC you are reporting. You're not going to get severe potassium burn at 1.8 EC and pH being off won't do it either. I suspect your pen has been lying to you. To get looking like that, it has likely gone well over 3.0.

I Am at 1.8 since yesterday. Before that i peaked at 2.3. Then i started supsceting lockout so i flushed and filled tank with 20L ec 1.2. It took them 12 days. Symptoms on the right got way worse, left lost its dark green with yellow tips. And started to yellow out in the way the right ones started to yellow at the high ECs. So somwhow they did not uptake nutrients, while the left one seemed to have to much. Now i set to 1.8 and see what happens...

 

[Ninjadogma]

I Am at 1.8 since yesterday. Before that i peaked at 2.3. Then i started supsceting lockout so i flushed and filled tank with 20L ec 1.2. It took them 12 days. Symptoms on the right got way worse, left lost its dark green with yellow tips. And started to yellow out in the way the right ones started to yellow at the high ECs. So somwhow they did not uptake nutrients, while the left one seemed to have to much. Now i set to 1.8 and see what happens...

When you were pouring were you getting a climbing EC? That indicates the soil was probably much higher than what you got from the reading, and usually it's not until after you make the correction that you see the damage you did setting in. Bad leaves look exponentially worse. That plays out usually around the first 5 days after the fix, and then once it all settle in you should see the spread slow down or stop... sick leaves will look sicker but good leaves won't be going bad, and new growth will look good and those are signs you're back on track.

You might have already fixed it and now you gotta wait, so just keep those numbers good it should start to look better.