I didn't drop any ball, waiting for next powerbill as he said he wanted to know how much I am charged in kilowatt hours, I figured anyone could search the watt for the fx6
So you want others to do the work to get you the answer to the question YOU asked. Guess you didn't drop the ball, cause you never had any intention of carrying it.
So anyhow the FX5 draws 50 watts http://www.drsfostersmith.com/Media/PDF/25754-FluvalFX5FilterManual.pdf vs the 43 watts of the FX6. We'll just use a price of 10 cents per kilowatt hour. So it would cost $37.67 per year to operate the FX6 vs $43.80 to run the FX5. At 15 cents it would be $56.50 vs. $65.70