The Evolution Series of skimmers
are the first ever "countercurrent" downdraft design. This provides certain
unique operational properties that set it apart from the rest of the ETSS line.
Giving your tank gentle but highly effective waste removal that will never
over skim your aquarium. Great for a mixed coral tank at any flow rate.
It creates the finest bubble size that totally fills the skimmer body with so
much air that it turns the water to a solid milk color.
The countercurrent action allows for far greater air water contact time and
reduces the amount of wet foaming to a minimum, creating a really dense
waste product in a very compact space saving design that fits into most
stands. This is the one powerhouse of a skimmer.