no idea where the shop is now.
the light shouldn't cost more than a cent a day to operate. there was an old thread where mrs budak did a calculation, but I couldn't find it in the search.![]()
it's stuff like aircons/refrigerators/ovens/water heaters than account for most of household power usage.... filters and lights (even running 24/7) don't make much difference.
and do read the stickies, aquatic FAQs and old threads to learn more about aquaria....
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