ok one more quick question, i really dont know much about pumps/powerheads. I found a water fountain pump online at lowes that runs 130 gph which is still more than i need, it has a magnetic pump, which i think is good? It has a max head of 4ft, which is about what i need. its like 5 bucks more than the powerhead. would it be significantly better than converting a powerhead to a pump even thought the powerhead has 50 more gph? i'm more concerned about the head height than the gph