my new tank has been up for about 2-3 months now so i decided to setup my reactor. it is a BRS reactor and i am running GFO pellets in the bottom and Rox carbon in the top. well during setting up and flushing out the first couple of gallons to wash the media, i ended up with a fine layer of carbon that fell through the pad and now my GFO won't tumble. i am running it with a MJ1200 and i can put it wide open and it still won't tumble.
1. why won't the GFO tumble with all that flow?
2. do i change carbon to keep it falling though or can i change to a finer pad?
1. why won't the GFO tumble with all that flow?
2. do i change carbon to keep it falling though or can i change to a finer pad?