As someone who has owned several different skimmers I'm going to suggest that performance comes down to body design, quality of the pump, density of bubbles and dwell time of said bubbles. Case in point, I have an old Red Sea Berlin skimmer that was very expensive 15 or so years ago when I scored it. I'm not cheap, but don't want to throw away any reef gear and will find away to re-purposes something I paid for to justify my hoarding
So, I needed a skimmer for a QT tank. I pulled out the Red Sea, upgraded the pump to a Sicce PSK and got performance that rivals any skimmer I have owned. Why? Dwell time and bubble density. On a side note the Red Sea Berlin really was an interesting innovation and design with the "triple pass" increasing dwell time and settling / condensing froth. Unfortunately you really had to have the water height dialed in to keep the pump from stalling due to back pressure.
So, I needed a skimmer for a QT tank. I pulled out the Red Sea, upgraded the pump to a Sicce PSK and got performance that rivals any skimmer I have owned. Why? Dwell time and bubble density. On a side note the Red Sea Berlin really was an interesting innovation and design with the "triple pass" increasing dwell time and settling / condensing froth. Unfortunately you really had to have the water height dialed in to keep the pump from stalling due to back pressure.



