Protein skimmer brand?
 

Robert Fenner's "The Conscientious Marine Aquarist" has a photo of an hang-on,
airstone-driven, counter-current skimmer, fed by a siphon from the tank with a
powerhead returning the water. He does not mention the brand. Anyone have any
idea who makes it?

George Patterson
Coffee is only a way of stealing time that should by rights belong to
your slightly older self.