Cool thread.....
Power for me is dirt cheap. With no aquariums, my bill is usually 29.00-32.00 per month. With all 9 of my tanks running, my power bill has only been about 38.00/month. Then with the A/C running, goes to maybe 45.00. Same with my water/sewer/garbage bill. It normally ran me 102.00 every other month, and now with water changes on all my tanks, it's only about 122.00-125.00 every 2 months.