I think shes dying

its off by 60 i think

damn it was off by at least 180 directions said it was factory calibrated, i figured it would be off but not by that much. my ppm is 980... though it was arounf 800

Yeah but that still doesn't answer the question why only one.....

if you are dripping, then have you checked the dripper on the sick plant?
piks would really help...otherwise we are just guessing. peace

lights dont go on until tom. spent time trying to fix it, wasnt thinkin about pics. i will put some up.

ok the first three are of the sick one and the last one is of his neighbor whos doing really good.

Dude what happened???!! Your last one does look very nice to me but I don't have a single idea on your sick baby. Hope latewood or somebody with a better eye can help you. I'll check back and see....good luck

arrgg so fustrating, im pullin hair. How do i get a good ppm reading every time i check it it changes. and im checking it often. i give the res a nice stir but i can still see a diference in ppm from different spots in the res. Also i can see undisolved particles in my water and i put 2 air hoses in there with a pump to keep the water turning.... if i didnt it would all settle at the bottom. i use organic bitonicare products. this is so wierd i put some fresh water in to lower ppm and it stays the same. I checked the calibration on the pen its ok.

Wow I wish I knew :( I topped up my small system with a half gallon a little while ago and PPM went down by 10. It's only around 8 gallons total, and I was at 560, now 550 after putting in the half gallon of plain.

Maybe you can pump out a couple of gallons and replace? I would certainly think you would see a drop anyway.

im taking out a half gallon at a time and replacing with fresh water. my well water is at 200ppm which is ok. and im sitting at 730 right now, seems stable and my water no longer has particles in it. i think my problem might have been undesolved nutes sitting at the bottom of the res. still doesnt account for only one being effected maybe the strain requeres low ppms.

I'm guessing your roots are all white and healthy looking underneath? I'm really having trouble believing that even being off by 100ppm or something would drop that plant like that. You have the waterfarms right? Can you block the one off seperately and perhaps get some distilled water to try? I;m just throwing things out here because I really have no clue....those curled twisty leaves.....???