On Wed, 13 Aug 2003 23:56:36 -0400, willis stanley
wrote:

With CF bulbs you really don't need to replace them till they burn
out. At least on a plant tank.

There are many factors including what type of plants you want to grow,
if you want to bother with co2 injection, what kind of fish you want and
so forth. This newsgroup is a wealth of information and opinion and I'd
suggest you spend a while reading related threads on google. My own
personal experience is with a 130 watt fixture above a 55 gal. and I
think that's less than I would prefer (e.g., consider how deep the tank
is and your need for light to reach the bottom in your assessment).
Also consider cost in the overall picture (you probably will need to
replace the bulbs every 8 months or so) FWIW I have a 65 watt smartlight
above a 20 gallon with less algae than the larger tank. After you've
considered what you want for the tank as a whole then made the
appropriate lighting decision, you might want to shop online from
someplace like hellolights.com--it's usually cheaper than purchasing in
an LFS and you've got a better selection of bulbs, etc. (personally, I'm
going to shift the 20 to a 6,700K bulb instead of replacing the
smartlight).


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