Join Date: Oct 2010
Location: New England, USA
Major oxygenation of the water come from fresh water changes, not bubblers...
(Don't you love how everybody tells you something different here? LOL)
I have green tetras, cory cats and a loach in with my bettas in the 20H sorority. No bubblers. 25%+ water change every week, and everyone is alive and kickin'.
But you can put an airstone in, if you'd like. But its the water changes that matter.
20H: 2 Cory Catfish, One very mellow Cambodian female Betta, Two Golden Veil Angelfish (male and female)