Hey all, So I have a 9 site bionacare aeroponic garden, 400 watt MH/HPS , 3 x 3 hydrohut, vented hood with the 400cfm exaust. A 6" clip fan, oscilating tower fan and has 2 12" airstones in the resivor.. I planted 3 OG kush, and 2 master kush. One master kush looks like its burning up from nutes and has no roots showing.. All the others have rooted and are about 4" tall. my question is, where should my PPM be, I could just be a sissy on this, but my plants are looking like have nute burn. I'm running 715ppm My res is at 25 degrees C. 18/6 78-80 degree room temps 30%rh And my light is 19 inches from plant tops. One week old! Any advise!
What is your pH at? You may have very hard water in which case a "Micro for Hardwater" would be recommended. Aside from that 715ppm is not too high I wouldn't think. It may just be a matter of a little pH UP or DOWN to get it to between 5.5-6.0. I've personally seen the Master Kush in an Aeroflo 30 and they GOT HUGE!!! and were healthily drinking Nutes up to 1200-1500ppm in FULL SWING, so I'd first check pH and then go from there.