Hi, I am planning to install a Powerhead in my 16G tank with Measurement of 20"x12x15". I am planning to install MaxiJet Powerhead in there to clear the surface of water and creating some wave. I already got a Skimmer hanging at the back of the tank. The surface will be 20" by 12" and planning to install the Powerhead on the back corner to blow or create wave across the surface to clear all the garbage on the surface. I am not sure to get the MaxiJet 900 or 600. I tried the spare Maxijet 1200 I got and create storm under the water when the wave hit the tank wall and flow down the tank.. My fish seem to be swim like crazy and Coral just wave like wind storm.. Should I get the MaxiJet 900 or 600 that strong enought to blow across the whole surface without creating storm inside the tank



