Originally Posted by Ziggy953
Most recirculating skimmers are needle wheel. Needle wheel is just the type of impeller they use to break the air up as it is injected into the skimmer body. Recirculating means that the water is drawn into the pump from inside the skimmer body and then injected back into the skimmer. It allows for more contact time with the bubbles and skims better.
So if Im just talking about the Octopus
Octopus DNW-150 is better than Octopus NW 150.
Hmm But wow the BK is like 500 more...
For my needs
Will a less costly model be fine? Or will I have to eventually replace it. (I dont want to do any upgrading later on)
I'm still not sure why protien skimmers need replacing, is it cuz they break, noise or ?