Bergama, Coralifes "revised" instructions tell you to install the outflow tube at or above the tanks water level. Seems CSS instruction is illustrated as well as written with problem inducing setup instrucitons...........They are supposed to have a revised set of directions on their website soon......
Other than size and make / brand of pumps on skimmers by coralife, the real difference in the models above the CSS65 is just the bubble "Infuser". On the 65 model its a cone shaped device, and on the larger models its sort of 2, 45 deg elbows..........which is supposed to give a wider dispersion of induced bubbles in the reaction chamber so they spread out further in the wider chamber........
Jason57........When it works a seaclone is a decent skimmer, but even on its best day can't compare to a CSS. I am not knocking a seaclone, but the CSS is a much better skimmer.]
It seems like more and more folks are getting rid of their Remoras for the coralife models............one of the biggies is noise levels......the CSS models are quiet..........