Power Usage VS $$$$

[Renegade]

Hey guys i'm just wondering what is the overhead on running a 120g. I rent so i do not see my bill but i was wondering what my 120 is costing me to run a month.

i have a 120g with 2 250 MH, Euro Skimmer, Dart, Mag 7, Heater, 18W UV, maxijet 400, Refug, with 28W corallite light for refug. 2, 120mm fans (heavey dutie, running 24/ 7)

What do you think my average power consumtion is ?

Kyle