I agree not enough ppm of a nutrient solution for the week your in 1000ppm -1200ppm nutrient solution.
I just measured my nutrient solution. EC .8. That is 400ppm on the 500 conversion factor and 560ppm on the 700 conversion factor.
The company doesn't give me an EC or ppm schedule. Just how many ml/L. I am using half strength 2 part, silica full strength, cal mag full strength, and some other micros full strength. In my second journal I have a link to my feed schedule. But you can go here to see it. http://bloomadvancedfloriculture.com.au/files/2012/09/bloom_FEEDSCHEDULES_DELUXE_4WEEK_VEG_RECIRCULATING_BUBBLER_DEEPWATER_CULTURESYSTEMS_270920121.pdf
Ok cool, that's about half of whats suggested. You harden them off with your nutrients. You can actually run a pretty high ppm if you slowly build up there nutrient solution ppm(s) over time. From what I've seen online like general hydroponics or fox farm, if you look at there schedules the ppm week to week is pretty close, you could use it as a reference to hit the ppm(s) with your own nutrients. You need to get back on track with your ppm. I would probly go 900-1000 ppm this nutrient change and them the next full strength (what ever that might be)
Do you happen to know what ppm I should be using. My meter shows me EC, CF, ppm x 500, & ppm x 700.
ppm x 500 for the U.S, I'm unfamiliar with the other. But use what ever works for you maybe just the EC,
Only partially into 2nd week of nutes
Don't know what chars stands for
Ya this week was the first week I added cal mag and it was at full strength.
