At the 2014 AquaponicsFest in Colorado, I gave a presentation entitled “Water Testing: Beyond the API Master Test Kit”. Rather than re-post that presentation, I’m going to put it up here, nutrient by nutrient, with added information and updates as I get them. Here’s what you have to look forward to:

• Why we test
• The Big 3 N-P-K
  • Nitrate
  • Phosphate
  • Potassium
• Micro-Nutrients
  • Calcium
  • Magnesium
  • Iron
  • Boron
  • Copper
  • Manganese
  • Molybdenum
  • Zinc
  • Nickel
  • Silica
• Water Quality Parameters
  • Alkalinity
  • General Hardness
  • Dissolved Oxygen
• Good Lab Practices
• Iron Chelate Interference: The downside of Fe-EDDHA and FE-HBED
• Product Review: YSI 9500 Colorimeter
• Product Review: Hach DR900 Colorimeter
• Product Review: Hach DR1900 Spectrophotometer
• Product Review: Hach HQ30d + Rugged Luminescent Dissolved Oxygen Probe