electricity cost

gosh, for my 55 gal I use 110 watt cf, an 8 watt canister filter and a 300 watt heater that gets used maybe 1/10 of the time and no UV.

a 400 watt pump sounds like a bit large for a hobby tank, maybe it's 40 watts.

55gal
8watts/hr X 24 X 30 = 5.76kwh = $.80 or so
110watts/hr X 8 X 30 = 26.4kwh = $4
300watt/hr X 2 X 30 = 18kwh = $2

So I get maybe $6/month, ok so it's not $1. I did a similiar calc for my 20gal and got maybe $2, so I'm optomistic.

good luck
:)
 
I wish it was 40 but, no it's 400 (actually, 391 watts per hour, to be exact.) It's the Iwaki MD100RLT. It runs the whole show so I wanted to make certain I had a workhorse.
 
Well but yeah, you've got some fancy schmancy 400 gallon tank there. I'm not sure your calculations are relevant to the average hobbyist. For the Monterey Aquarium or the Aquarium of the Pacific maybe. I'm half afraid a 400 gallon setup would crack the concrete slab my house sits on. Maybe would should do a kWh calculation per gallon and see what curve falls out.

fabulous ray tank BTW.

good luck
:)
 
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