Thank you Talontsiawd! That makes me feel a bit more comfortable. I was starting to worry. But to be safe, I've put a lot more yeast in the bottle to build more pressure just to be sure. LOL If it holds after this...then its a sure thing!
Caton, go for it! My problem was that my co2 generator is going to have to sit on the table near my tank. I didn't want to look at plastic bottles all the time. Its one thing if they are hidden away but a bit cheesy for being out in the open. Besides, I had the wine bottle and spice jar already so I was making do with what I had.
I do hope that when I design the scaping that it'll be worthy!