I'm running about 4 bps into my 20" and I'm not getting any bubbles in the tank. Watching your video I see you have some large bubbles at the top of the reactor jumping around. Those bubbles look like air, not CO2, so I wonder if because you just installed it that the housing hasn't completely purged atmospheric air out of it yet.
I run mine with a Mag-5 pump full out, which is supposed to be 250 gph, and it looks close to that. I have fine bubbles in the housing but they're tiny, almost invisible. Some do actually make it into the uptake pipe, but by the time they reach the spray bar, they've completely dissolved.
I'll try and get you a video as soon as I can get to it. Probably tomorrow night.