Sale price$15.19


  • Balanced phosphorus complex for phosphorus limited ULNS marine reef aquariums.
  • Promote natural nitrogen uptake and nutrient control in ultra low nutrient systems (ULNS) which are phosphate limited.
  • Provides an important nutrient source for nitrification and denitrification as well as proper nutrient assimilation.
  • Made in the USA.

ULNS Phos Instructions

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