Is the bubbler needed?

[BreezeRuehls]

In a small set up, Like a 5, with a filter, would I have a need to use a bubbler, or would the filtration process, and the movement of water it causes provide enough oxygen? I do not use tank often, Its my "sick bay" or quarantine for the fish displaying aggressiveness and stressing out other fish. Only like 2-3 fish at the most at a time.... :help:

 

[sed03f]

probably not if the filter is turning enough water.

 

[cryeth_the_raven]

Sed is correct- the most a bubbler would really do is add a nice aesthetic to the tank. The filter itself should provide enough agitation for oxygen exchange at the surface.