////Phosphate Test Kit, 0.0-5.0 mg/L (75 tests)

Phosphate Test Kit, 0.0-5.0 mg/L (75 tests)

SKU: A7872 | UPC: 15561178723
Format: 0.0-5.0 mg/L (75 tests)
Categories: , ,

Made in Canada, Fluval Test Kits accurately measure water parameters to help you maintain a balanced and healthy environment for your fish and plant life. It’s important to always test your source water as it may contain pollutants hazardous to your aquarium.


When organic matter decays and fish waste is produced phosphates are released into the water and can cause undesirable algae as well as inhibit the growth of hard corals. Tap water can be a source of phosphates, in which case it must be pre-treated before adding it to the aquarium. Test as needed.

  • 1 x PO4 #1 (10 ml)
  • 1 x PO4 #2 (10 ml)
  • 1 x PO4 #3 (10 ml)
  • 1 x Pipette
  • 1 x Glass test tube
  • Instruction booklet


TEST KITS2019-03-24T14:08:28-05:00



Why did my aquarium pH level rise rapidly after changing my gravel?

Some buffering by natural gravel is expected, but it will have a more dramatic effect on tap water with little buffering capacity (KH). At least 30-40mg/L KH temporary hardness is required to stabilize pH levels.

Is the Fluval Ammonia Test kit affected by ammonia binding/locking supplements?

The Fluval Ammonia test kit uses the Indophenol method, which is typically not affected by ammonia binding/locking products. Given that there are many such water supplements on the market today, we cannot guarantee this will always be the case.

Why did my test kit reading show a different pH value than when I brought a water sample to the store?

It’s best to bring both your water sample and test kit to the store, in order to measure both at the same time. Conditions can differ between locations sufficiently to affect test kit results. Furthermore, if your container had too much air in it, the pH level is likely to have changed.

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