If you're at a point to upgrade, I'd upgrade... Since you don't have CO2, so
far, you won't NEED CO2....
And if you upgrade, lets say, a 2 T8 strip to a 4 T5 strip, and learn later
that you NEED CO2, you can always turn off 2 T5 lights until you GET your
CO2, so you don't encourage too much algae growth with your new lights...
just a thought....
"Graham Ramsay" wrote in message
...
I can afford a nice new twin T5 light rig or
a proper CO2 system. I can't get both.
What should I spend my hard earned on?
--
Graham Ramsay
You might be a Bright:
www.the-brights.net