[Tex Gal]

Look at this thread: Check out post #89 It works.
http://www.aquaticplantcentral.com/forumapc/diy-aquarium-projects/44053-tiny-super-efficient-co2-reactor-9.html

I have the little CO2 reactor (that this thread is about) in my 29g and it works great. I have the little wooden skewer with DIY in my 10g. It works great. I had originallly used a glass diffuser like you have. It clogged very very fast. They are very difficult to clean. I don't think they are worth using. The wooden piece is cheap and I can replace it for pennies. It's small so it hides behind my plants. It makes fine bubbles.

Good luck! PS. I drilled the hole in my bottle cap - I didn't punch it. I have no leaks. I had DIY on three tanks and no leaks on any of them.

 

[Tex Gal]

is it just a toothpick puncturing the tube

No it's a wooden meat skewer for making shishkabobs (sp?). You can get like 25 of them in a pack for a few measly bucks at the local grocery store.

Ghengis- I love your skewer idea. It works great and is easily hidden. Sometimes high tech gadgets aren't all they are cracked up to be. Sometimes less is more! It's definitely true in this case! I've referred your ingenious "CO2 diffuser" to many people! Thanks!