I have recently got tired of relying on my fans to keep my tank cool and with 400w bulbs its just not cutting it. I was looking at a 1/3 hp custom sea life drop in at marine depot. I also ran across a couple 1/4 hp chillers on ebay. A CL- 650 and a C-0250. Any good? Any suggestions? Its for a 150 gal. Thanks, Mike