Hey there loolagigi....congrats on the new member first off...looks like yer gettin er done there...they seem to be strong at the new growth...now, i know absolutely nothing about hydro so lets get that clear right off the bat....heres where i pipe in my .02 cents worth though because this is helpful no matter what way you grow...
I work with well water as well...lol, that sounded funny...and it can be challenging if you dont know whats in your water...first off get yourself a big ole bottle of hydrogen peroxide and a few empty gallon jugs...fill your jugs up with water and add a tablespoon of peroxide to each one and let them sit until your ready for them...i always refill my jugs and add peroxide right after i get done watering so they have a few days to sit (soil grower here, only have to water every few)...peroxide removes methane and other contaminants from well water plus while its sitting, its coming up to room temperature....this being said, bottle RO water is best but if you are goona work with well water this helps, or atleast is helps me....
Now on to nutes...where the damage originates will tell you alot about what you plant wants or has to much of...im sure you know all about mobile nutes and immobile nutes so heres the key...if your damage is on the older lower leaves that means your problem is with mobile nute, aka N-P-K, magnesium, zinc, etc.....if your damage is with newer growth then you should focus more on immobile nutes, aka calcium, boron, chlorine, cobalt, copper, iron, manganese, molybdenum, silicon, sulphur..etc...i say nutes in a broad spectrum but i know alot of those are trace elements so just to clear that up....
From what i can see i think you are dealing with a sulphur problem, but like i said, i know nothing of hydro...only soil...i hope this helps in some way and throwing some green mojo your way....good luck....:watchplant:
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