I recently bought the phosban 550 reactor and I am running seachem phosguard inside of the reactor.....My question is, do I need to have a strong enough pump where the phosguard is moving all around inside of the container or should the phosguard balls be sitting still inside the reactor?? Right now I have a maxi jet 400 as the pump and the phosguard does not move around inside the container....

