the estimate 2 cents was for all my tanks which have around 100 watts together, sorry if that was unclear.irishfan;3642449; said:2 cents per hour x 5 tanks=10 cents an hour
10 cents an hour x 20 hours=2 bucks
2 bucks a day x 30 days=60 bucks.
Am I missing your argument? 60 bucks isnt chump change to us young n poor
doing math for me with me looking it up.
$0.12 per kilowatt hour
100/1000= .1
.12x .1= .012 dollars= 1.2 cents per hour
10 hours aday
10x1.2= 12 cents a day
12x 30 days= 360 cents a month= $3.60 a month
it cost me $3.60 a month to run 100 watts.
i encourage you to look up the facts for the benefit of your fish, i see to many people thinking there lights and water changes are bankrupting them. so they cut corners to the detriment of there fish. the funny thing is both of those things cost very little and the majority of the bill is misc. fees.
i also dont see the need to run your lights 20 hours a day.