Rowa phos
 

Im out of brs gfo, but have Rowa phos, ok to use in my reactor? The instructions say ok in a canister filter or at the end of the main filter system.

reactor is fine i use rowaphos...expensive but works great:)

flush it well with the reactor its dirty stuff lol

Ya, I just noticed the price tag on the lid...may as well use it up...I don't have any significant issues, just noticing glass getting dirty daily so time to change up.