I used The Ocean Runner (OR) 6500 and so far very satisfy with its performance.
It is a powerful universal pump to be used as a circulation or current pump, both in salt and fresh water aquaria. The OR6500 is supplied with a rugged pump housing, an energy saving motor, a polished ceramic shaft, and ceramic bearings. All these qualities ensure a quiet and maintenance free performance for many years. Can be used for both submerged and in-line installations. Pump uses 115 watts. Pumps 1625 gph at 0 feet. Connections: 1-1/4 inch male barb inlet, 1 inch male barb outlet.
I have a Little Giant on my 180. Its been running for 8 years with no problems. Just made a small wet/dry for a friend and am using a 500 submersible in it.