When I was doing aero/NFT, I used rubbermade 18 gallon containers for reservoirs, filling to 12 gallons and changed them weekly. Never topped off or added nutrients in flight (seems to risky), just changed them out weekly.. If ever you're having nutrient problems, always better to go lighter as opposed to more..

Hope you recover!
Farmer Rich Reviewed by Farmer Rich on . more nutes or less with blue widow im using 6 x6 rockwool cubes. hand watering drain to waste. 1000w hps in doors. 18 days into flowering. Gh flora. at 1 micro to 2 bloom ratio no grow. 1/4 tea per gallon of powder koolbloom. mixed to 1000 ppm at the present time. do these plants need more ppm or less? more nutes? are they getting burnt? any help much appreciated. im asking because gh's nute calculater says that you should not go over 850ppm. i did that for the first few weeks and just a few days ago went to 1000ppm when i saw Rating: 5