On 2005-01-13, Richard wrote:

They require oxygen, but the water doesn't need to be circulating.

I'm staring at a one litre tank right now with 2 harlequins, 2 pencils and
a glowline rasbora and a bunch of baby crypts. No filter.


So your plants produce enough oxygen for the fish to survive?


--
"I have to decide between two equally frightening options.
If I wanted to do that, I'd vote." --Duckman