FAQ: Company X says that I don’t need to replace their phosphate absorber for several months, while your instructions say that Seachem PhosBond™ needs to be replaced every 4 days when reducing phos...

Not at all! If it takes a phosphate absorber several months to reach its full capacity when the tank has high phosphates, it means that the media is exceptionally slow at absorbing phosphate. PhosBond™ needs to be replaced every 4 days as long as there is a phosphate problem because, given an infinite amount of available phosphate, PhosBond™ absorbs phosphate so quickly that it reaches its full capacity in 4 days. The 4 day replacement period is a function of how quickly the media works, not a function of how high a capacity the media has.