very few people in Australia bother with CO 2 set-up's in fact you would be
flat out finding anyone selling such contraptions.

As for the Sunlight issue, I have one tank that gets a shaft of sunlight in
the afternoons, and that tank grows more algae, then all the others
combined.
I have a large Sunroom [ 35 sq meters] that I would like to have some tanks
in , but as the room is half glass on three sides, it would be imposable .

I don,t think that sunlight, would be sufficient to actually heat a tank,
and I say that as someone who lives in the tropic's.
bassett

"Bill" wrote in message
...
Elaine T Spaketh Thusly:

bassett wrote:
You will be battling Algae growth, to the point that it will become
established, and nothing will shift it.

And this is from your extensive experience with sunlit tanks, or a wild
guess??? I'm running my THIRD sunlit planted tank and all have been
stable with algae easily controlled.

I've actually had MORE algae from overlit 3 WPG flourescent lights than
sunlight.
Just curious.... are you running CO2 in any/all of these tanks? My
experience
makes me believe that the more light you have, the more you need CO2 to
fight
algae. My low light tanks do well without it, my well lit tank bursts out
in
algae if I slack off on mixing up a new yeast bottle. I guess strong
sunlight
(I don't get enough at this latitude) is much stronger than most lighting
setups.

--
Bill H. [my "reply to" address is real]
www.necka.net
Molon Labe!