Interesting product, looks like Bio-Phos 80 has been out for a year or so? Idid find this info to compare the Bio Aquate
PO4x4
According to the company, 500ml of this product can remove 3 ppm of phosphate and silicate from roughly 16,000 liters of fresh water or 8,000 liter of marine water. Since the product seems to work so well, they recommend adding small amounts of the product to gradually lower the PO4 levels without causing rapid and negative changes to the water chemistry.
Bio Aquatek lists a capacity ranging from 40g/kg to 80g/kg of PO4 removal depending on water conditions and is also suitable for absorbing silica (S1O2) from the system.
In comparison, ROWAphos removes 12G of phosphate per kg of media. Bio-Phos 80 is also described as high density with low dust so it stays in place where it is supposed to be and not break off and float into your main tank and harm your tank's inhabitants.
According to the instructions every 100g of Bio-Phos 80 is capable of removing up to 4ppm of PO4 from 1,000 liters in a saltwater aquarium or from a 2,000 liter freshwater system.