I don't understand the need for 2 500W heaters... my large system is at a steady 80 degrees with 4 pumps (2 return and 2 for the octo skimmer) and 4 powerheads in the water. Doesn't really fluctuate with lights on or off either. Maybe consider taking them out and see if it makes a difference in temp and cost.
Just so we can compare, my bill was $369 with Enmax:
2 250W MH
6x39W T5
OceanRunner 6500
QuietOne 6000
LifeTech 5500 x2
3 Koralia 4
1 Vortech MP40W
Last edited by phreezee; 02-24-2009 at 08:28 PM.
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