so did you bring your ppm back up? if so + for you, alot of growers get scared when ppm # get high...to be hohnest its the least of your worries just make sure ther not burning is all, the biggest hurdle h ydro grower get is high rez temp and wacky ph, a swing in ph can cause serious havac , thats why i like to use a large rez, the ph doesnt fluctuate(sp) nearly as bad as say a 5g or 2g bucket.