The Unkai protein skimmer is a radical new product from the creative minds at Perfect Reef Systems Japan. Better known as PRS, this think-tank makes very original aquarium products like the Corrente digital flow meter, their Auto Zeolite reactor, but…
A trip down memory lane of needle wheel impellers
Of all the specialized equipment we use on our reef tanks, we dare say none are as aquarium-specific as the needle wheel impellers that drive most of our protein skimmers. The design of the needle wheel impeller has been through…
