On Tue, 13 Jan 2004 14:25:35 GMT, "J.S." wrote:

No airstone? What about oxygen? There wouldn't be any other way for the
tank to get oxygen.

Surface agitation should be sufficient. Airstones don't magically pump
O2 into the water, and while I'm no expert, I don't think they are all
that efficient.

Every well matured salt water tank I've seen is just fine without that
ugly stream of unnatural bubbles