media reactor turned into a bio pellet

So I decided to try out this Media Reactor to see if it would work with bio pellets.  It comes with different filtration pads, 1/2" tube, and john guest fittings.  It looks pretty simple to install and pretty much plug and play.  

                                                          I drilled in 2 screws and made sure it would be leveled.  The John Guest fittings slip really easy to a 1/2" pump output.  The issue I was experiencing here is that I don't have enough space on my chamber to work with,  I placed the pump on the far right chamber, had to force it a little to make it fit.

After leveling the cap on the screws, the next step was to add the bio pellets.   I measured the amount with a measuring cup for 1/4 . I sealed it up and realized the screen is not enough to hold the pellets. Since I can't use the sponges I had to remove them.  I used some left over filter bag to cover the screens.

I placed the return hose on the protein skimmer chamber, I connected the pump and turned on the valve.  To my disappointment there was not enough flow to get the pellets to tumble.   The next thing was to upgrade to a higher pump.  I got the MJ 1200 and to my surprise the pump has a smaller footprint than the one I had connected to the reactor and not to mention more flow. I'm pretty satisfied with results. I dosed some micro bacteria to the pellets to speed up the process and now just have to wait a week to increase the bio pellets for 1/4 cup