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NFC: light bulbs and tannins

I have 2 questions I was hoping you guys might be able to help me
with.
One is about those twisty fluorescent bulbs that
are said to have the brightness of a 75 watt buld but only use 20
watts.  My question is when you are calculation the watts per gallon,
which number do you use?  Are those bad bulbs to use?

Second question: I have some very yellow tanks from the tannins in the
drigtwood I have in my tanks (I have plecos).  I am assuming these
tannins block the light since they make the tanks look a lot darker.
Does anyone have any ideas about getting rid of the tannins or being
able to have plants survive and get enough light in such a tank?
Thanks

Scott


"Scott D. Goett" wrote:

> I bought a great microscope from a company in FL called Nightingale.  There
> number is 941-997-5354.  You might try them.  They will ship them.
>
> Scott
>
> Ray Suydam wrote:
>
> > Hello All,
> >               I hope everyone had a great Thanksgiving!
> >   Would anyone on the lists know of a good source for good quality new
> > or used microscopes?
> > TIA
> > Regards
> > Ray
> >
> > Port Jefferson
> > Long Island, NY
> >
> >  <*)))><\ ~~~~~~
> > AKA #07726
> > Long Island Aquarium Society
> > In from out of town? 45 min. east of NYC. Come join us! Guest speakers,
> > Bowl show,fish auction,raffles and more! Meetings 3rd Friday each month
> > @ 8:00 pm @ Holtsville Zoo and Ecology Center,
> > Buckly Rd. Holtsville L.I. NY
> > Contact raysuy at webtv_net
> > http:members.xoom.com/liaquasoc/