I JUST START MY 28 GALLON JBJ NANO CUBE W/ 150W HQI METAL HILIDE LAMP & HOOKED UP A 1/20HP ARCTIC CHILLER W/ A MAXI JET 600 POWERHEAD TO FEED THE CHILLER. I REALLY HAD A TOUGH TIME GETTING MY POWERHEAD IN THE TANK. DOES ANY ONE HAVE A SUGGESTION OF WHAT POWERHEAD TO USE & WHERE TO PLACE IT IN THE TANK? CURRENTLY I HAVE THE POWERHEAD BELOW THE FILTER BASKET BETWEEN THE FILTER AREA & HEATER AREA.