Don't need to change the entire rez, but do a 50% change and add your water resource.I did a top up on the 1st changed out 5 gallons ppm from 340 to 680
Should I do a reservoir change?
i'm not a 10 bottle type of guy and really can't get into which to add and what not.When I adjusted the ppm on the last partial change I had 60 ppm of cal mag before adding nutrients.
Honestly they just look like they are over fed... can be many contributing factors. VPD, nutrient ratios, genetic needs etc. Im thinking dial back to 450i-500ppm.Ppm was 640 after the top off.
I removed all of the plagued leaves and any other leaf that looked suspicious.
Definitely don’t think it’s insects or a nutrient problem, light, water, exchange, circulation, reservoir or vpd.
So that leaves fungus right? I’m thinking if it pops back up I’ll hit them with southern ag spray? Idk still researching
Nice, love a good chart.ppm at 700 with ph at 5.5 should not cause this. Did you redo your rez water and brought the calmag down?
i know you said the roots look okay, but double check them. i've got a feeling this is a lockout.
I just found this online from another site and thought its very nicely done.
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