Mine is enourmous!
Dam you fish!!!
lol changed the house to those new energy bulbs, cant see the effect of the aquarium. but we do need to keep the house warm because of my little girl, so the heaters don't do much even in winter.
If you're using single or double fluorescent lighting, chances are they aren't adding a whole lot of your bill - about 15 to 45w. Filters too don't consume more than 15 to 20w - so the totoal consumption is less than forgetting to switch off a lightbulb (switch to energy savers in a couple of rooms and you've balanced out the power consumption). What kills are those heaters... Fortunately power is included in the cost of a rental here, so I can't complain (water too) -