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Unformatted text preview: Index: GrowFAQ : What ranges should I maintain for my hydroponic nutrients pH, TDS/EC and temperature? Added by: MisterIto Last edited by: 10k Viewed: 588 times Rated by 43 users: 8.77/10 I follow and highly recommend the following parameters for hydroponic nutrient solutions for aeroponic, “bubblers”, drip, ebb and flow, NFT, passive, rockwool and wick systems. PH 5.1-5.9 (5.2 optimal) TDS 500-1000ppm, EC .75-1.5 Temperature 68-78f, 20-25c (75f, 24c optimal) The pH of the nutrient solution is a major determinant of nutrient uptake by the plant. If the pH wanders outside the optimum range of between pH 5.1 and pH 5.9, then nutritional deficiency and/or toxicity problems can occur. For hydroponic nutrient solutions used with inert media, keep the pH at 5.2 for optimal elemental uptake. It is at this point that roots most readily assimilate nutrients. These pH and TDS/EC recommendations may seem low relative to the normally suggested range, but are based upon information garnered from "Hydroponic Nutrients" by M. Edward Muckle andsuggested range, but are based upon information garnered from "Hydroponic Nutrients" by M....
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- Spring '08