Do you have a preference between these?
JMatt,
I have the Vertex, and love it! Don't know about the other brands, but it was easy to set up, and adjust. It's pulling gunk out of the water, even though all I have are 2 Banggai's, couple of snails and hermits. Skimmate is deep green, and brown sludge has to be washed out of the skimmer cup tube. It's doing a great job in my estimation. Quiet too!