If his/her ec were 1000, his plants would likely never live no matter what. PPM's on the other hand... even then, a new transplant with 1000 ppm's on either scale is not good. New transplants for me get a light feeding, NOT EVEN 1.0 ec, or 500/700 ppm depending on the scale ( I use around 300 ppm for them and go from there). I feed lighter than most it seems.
Yeah it was 500ppm 1000 ec, there is no decimal on my tds meter, so that would be the same as 1.0.
Yes my ec is now in the 600 range and drops a little bit every day so the pants are eating a bit, better than the ec going up! but I have to keep using a bit of pH down that then taps the ec up a bit again, so it seems to be keeping it around the same range, between 600 and around 630 ec.
I've also figured out that the dosage of calcium hypochlorite I am using would be 0.004 grams per liter, there was 36 liters in my res, so 0.144 grams in total. I was definitely putting more than that in the res, maybe double that. And I have also read that calcium hypochlorite can be used as a weed killer by applying to root area! So it hasn't killed my plants as it wasn't a toxic level but I think it was enough of a dose that has inhibited root growth. I haven't added any in about 5 days now, the temps stay around 17 celcius so I'm hoping that is enough to keep problems away? Any comments on this would be appreciated.