micro-macro w/co2?

[=J-MAN=]

I don't know which one would be better or if it will work at all.

[sniper1rfa]

both will work, but i dont reccomend it. i dont like either because the highest rated fittings i have seen are 400 PSI. about half what your average co2 tanks puts out...

[Kevmaster]

MacroLine will work fine. Micro may or may not work well. PM Tunaman as he sells the best stuff around(at good prices too)