ROWA PHOS or Extrax phos...whoose is better

[machodik]

Hi All,

I have use seachem phos guard but the effective is not as what I expected, so I would like to change my next phos absorbing media...now, I would like to buy Rowa but someone say use brightwell's Extrax phos. is better. so can anyone give me some good advises?

cheers,


MD

[Randy Holmes-Farley]

I do not think there is good comparative date to allow us to really know, but some brands do claim higher than normal GFO capacity for phosphate binding, and that is probably true since the manufacturer probably has some sort of method they use to determine capacity (perhaps via arsenic binding in fresh water, since that is the main industrial application).

But how much higher is phosphate binding in reef aquarium water at 0.03 ppm phosphate isn't known to me and may not actually be known by anyone.