Brs dual reactor....gfo not tumbling

[Coralgurl]

Well the carbon was a block, so I dumped it, cleaned the foam pads, refilled and everything is working again. Did not change the gfo. I run a canister filter on myl other tank so I know not to change everything at once. I still need to add tape but not sure where the bf put it and he's still at work....

Another question, how often do the pads need to be changed out?

The help is much appreciated!