On Sat, 1 May 2004 23:41:25 +1000, "Graham Broadbridge"
wrote:

"John -^)) " wrote in message
.. .
I've done a search on the Tropica site for plants (Brackish) and have
come up with a few choices. If I can get them locally this tank will
also be a low light planted tank with DIY CO2 if CO2 will be a benefit
to a low light tank.

Some additional CO2 will help plant growth in even a low light tank. DIY
CO2 is the way to go in small low light tanks. Just dont add additional
ferts unless you're looking for an algae jungle.

Graham.


I was thinking that it would help a little but not enough to make it
worth the effort. I believe I've read in other places, including
these NG, that the Lighting has to be at a level that photosynthesis
is going well, supply needed trace minerals, K2SO4, KNO3 then you will
need CO2. I have a 1 year old heavily planted 33g tank that has about
3w/g that I add all of the above to and if I stop giving any one of
the mentioned CO2, K2SO4, KNO3 and Tropica Master Grow my plants slow
right down and some start to die back. I some times have a hard time
just keeping NO3 between 5ppm and 10ppm. There have been a few times
were NO3 was at 0.

Anyway the jury is still out on this one I haven't made up my mind yet
whether CO2 is worth it. If I put 3w/g or more on this tank then I'm
quite sure CO2 and other ferts will be needed.

John