First time grower, hydroponic (stealth hydro system), using 2 sunlight 65 watt CFLs w/6800 lumens total, using Stealth hydro nutes. Temps in low 80's, humidity 40-50% usually, fan providing airflow. Ph in 6 gallon tank runs 5.9-6.2. Just got a TDS/ppm pen and tap water measures at 130 with 6.5ph. Plants are clones, indica (strain unknown to me), about 8 inches tall, and have suffered through too high a Ph about 2 weeks ago before I got my ph pen (previous pics on other posts).
I did a drain and fill w/o nutes 2 days ago because I think I have been burning my plants (had been using full strength, added over 2 days). Current PPM in tank is 298 (residual nutes?).
1) How long should I run this w/o nutes? Or should I go ahead and CAREFULLY add nutes now?
2) Assuming my tap water remains around 130 (is this ok or should I go get some RO water?), what PPM or nute level should I shoot for in tank?
I've seen posts on PPM in tap water not wanting to be over 100, other say less than 300 ok, so it is rather confusing.
I've also read posts where people are running 900-1200 ppm in their tanks, but that varies by strain and light source, correct? I have also read posts where people are at 300 ppm, though the best info I found said 600-750 ppm. I have also read that I subtract the starting water PPM from the total PPM to get the correct "nute" PPM... is this correct?
If someone can give me a nice, safe yet effective PPM level for nutes in tank given my tap water ppm that would be GREATLY appreciated. Believe me, I can't stand to see the girls suffer like this... it really bums me out.
Pics below show condition as of today. Most bad leaves were trimmed off, but a few visible, even in new growth. They are also droopy, but are actually perking up since yesterday. These plants are about 50-60 days post germination (I got them at 28 days) and I don't think they have grown as well as they should thanks to my nube screw ups.
Thanks guys and gals... you're the best.