Yes, alois is right, i have my reactor sitting in my sump. When i stir up the media each day, i turn the pump off, then remove the lid, then turn the pump to the reactor back on so the water is spilling into the sump. I then pull on the staff without the media coming out and let the media drop back on its own accord into the reactor. This method seems to stir up the bacteria and releases the bac into the aquarium. The corals then put out their feeders and feed off of the bac. The corals seem to love what ever is coming out.
Yes, i would have thought that the more media in the reactor the less water flow.
I think they have designed the reactor the way they have, is to encourage people to stir up the media every day without having to remove nuts and bolts. My reactor has worked fine with the original aquabee pump. Hopefully it will carry on
Brendan zeovitnz/aussie