Don't stress to much about the slight burn you gave them. If you continue to have problems I'd switch to flora nova series 1 part much easier to deal with just one bottle. After you figure out your new set up try more additives different nutes etc. Ph can range from 5.3 to 6.2 and you'll be fine but shoot for 5.8 as your average. Make all your changes SLOW. ie don't go from 500-1000ppm in one day try slowly increasing 100ppm every other day ...if you see any signs of burn add water to the rez and drop ec. . Same with ph keep changes small. Let your plants recover at a lower ppm/ec for a few days if you make a mistake before bring the ec back up. Here is a link to lucas' dissertation on hydro it has some good beginner advice.
http://www.cannabis-world.org/cw/showthread.php?t=892
Cheers and don't forget to have fun... after all it's just a weed..
HM
http://www.cannabis-world.org/cw/showthread.php?t=892
Cheers and don't forget to have fun... after all it's just a weed..
HM