Chapter 10: Managing Water Quality in the Aquaponics System

Water quality is the single most important factor in any aquaponics system. No amount of expensive equipment, low stocking densities, or use of tolerant plants can compensate for poor water quality. There is no one marker of good water quality, but rather a combination of different factors that must all be kept within proper ranges, including:

  • Dissolved oxygen
  • pH balance
  • Ammonia and nitrate levels
  • Temperature
  • Salinity, in systems using salt water or sourcing water from wild bodies
  • Suspended solids
  • Nutrient levels for fish

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