Depends on your set up. Size, lighting, pumps, airconditioning, etc.
Years ago I went from $35 a month to $400 a month, now a days my bill went from $23 a month to $30 a month.
well lets see last months bill was $134 adding 3-400watt MH and two 2600 SEIO and two 1500 Seio pumps and the bill this month was $238. And the light CO. Just got approved to go up another 22% by April oh fun.
Why am I the only one who's electric bill goes down in the spring and summer months? Oh yeah, I'm totally electric and my bill will probably quadurple this month 8O
Paying for the cost of running the tank is the least of my worries :wink: