Quote:
Originally Posted by prow  this is like those old school bubble skimmers. not very efficient. the bubble are to big, less surface area and contact time is limited. instead of the airstone and air pump why not put a pump with a needle wheel and a air line so it sucks air in and chops up the bubble real good. |
very untrue, CC skimmers are still top rated but passed by due to there size and ability to be a pain in the butt to set up. Using good quality lime wood air stones and pump will get bubbles just as small or smaller than any NW skimmer.
Here is my old 4" diameter 5 foot tall model and worked great for 4 years! IMO when setting it up I would use a gate valve to fine tune the water level and as many air stones as you can.
