AquaTest Po4 HR


:: Phosphate HR ExpertLine measures values from 0.024 to 0.34ppm

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:: Phosphate HR ExpertLine measures values from 0.024 to 0.34ppm


In nature the population of zooxanthelle is controlled by the level of nutrients (nitrates and phosphates) present in the water.


In a modern reef aquarium environment control of zooxanthelle, through the reduction of nutrients (nitrates and phosphates), is the best way to get natural coloring of the corals. For this reason it has been a source of study for many years leading to the creation of a multitude of “Management Methods” (Low Nutrients / Ultra Low nutrients).


Whether you are using microbiological methods or methodologies more traditional, when using these systems it is a good rule to keep constantly under control the level of nitrates and phosphates.


ELOS AquaTest Po4-HR is specifically designed to prevent this from happening.


Its precise colorimetric scale allows you to read the level of phosphate in a range between 0 and 0.43 ppm with a minimum reading of only 0.024 ppm of phosphate.


Alongside the similar test ELOS Nitrate HR, constitutes the best system for full control of the level of nutrients.



  • NIST certificate (National Institute of Standards and Technology)
  • Easy to use
  • Chromatic Scale


Marine Aquarium

Additional information

Weight 0.1 kg


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