RowaPhos 100g



In stock

If you purchase this product you will earn 60 Points that you can spend on livestock in our local shop in Portlaoise.



Feed Your Fish and Not Your Algae.

Rowaphos is the professional method of removing Phosphate and Silicate in all types of Aquariums and Ponds. RowaPhos is guaranteed to remove more phosphate than any other product worldwide.

In freshwater or salt water aquariums phosphates will feed nuisance algae which can overrun plants and expensive corals spoiling the aesthetics of the tank and in extreme cases killing its inhabitants.

Within the reef aquarium, phosphates will greatly affect the formation of coral skeletons by reducing calcification by over 50% and by inhibiting the deposition of strontium. It is suggested by Borneman that phosphates are a direct poison to calcification.

RowaPhos is a unique and patented, man made ferric hydroxide material chemically engineered for the efficient removal of phosphates, arsenic and silicates from fresh and salt water, having initially been developed in Germany for treating mains water supplies.

RowaPhos should not be confused with natural materials, which are generally based on aluminium oxide, (zeolite) or even other iron based products which claim to be the same product from other manufacturers.

Why RowaPhos?

Only Rowa make RowaPhos and any other iron based material is simply a copy with a completely different chemical structure and properties.

RowaPhos has the largest absorption ability of any phosphate product worldwide and will not leach back in to the water. This saves the need for immediate removal once the media is exhausted. The product is easy to use and will improve the water quality wherever Phosphate or Silicate is a problem.

It is of interest to Marine and Reef Aquariums where its unrivalled capabilities have shown it to be extremely beneficial in the control of nuisance algae’s and the growth of hard corals.

Constant use of the product is recommended, as its abilities to control nuisance algae is a major benefit.

In an independent series of tests carried out by the Berlin Technical University on the five most commonly used phosphate removers at that time, RowaPhos was found to be the most efficient in removing phosphate from water. Other medias tested reached only to 30 – 40 % of its removal capacity by weight. Additionally RowaPhos was found to continue to remove phosphates at lower concentrations and had a higher maximum holding capacity.

Since these tests many ferric products have been brought out which ride on the performance of the Rowa product and some even claim to be the same, however RowaPhos UNIQUE and its patented manufacturing process cannot be copied.

Available sizes

RowaPhos is available in 5 sizes:


  • Product Code RP10 – 100ml (media bag included)
  • Product Code RP25 – 250ml (media bag included)
  • Product Code RP50 – 500ml
  • Product Code RP100 -1000ml
  • Product Code RP500KG – 5Kg commercial pack


Will remove 3ppm of phosphate (PO4) from approximately:

  • 400lts – 88 UK gallons – 105 USG of salt water.
  • 800lts – 176 UK gallons – 210 USG of fresh water.


  • 1000lts  – 220 UK gallons – 265 USG of salt water.
  • 2000lts – 440 UK gallons – 530 USG of fresh water.


  • 2000lts – 440 UK gallons – 525 USG of salt water.
  • 4000lts – 880 UK gallons – 1050 USG of fresh water.


  • 4000lts – 880 UK gallons – 1050 USG of salt water.
  • 8000lts  – 1760 UK gallons – 2100 USG of fresh water.


  • 20,000lts  – 4400 UK gallons – 5250 USG of salt water.
  • 40,000lts – 8800 UK gallons – 10,500 USG of fresh water.


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