(Mosfunland) wrote:

I went to the store and looked at all of the little bubbler pumps for
aquariums....I had one years ago, that worked well, but I can't remember how
"strong" it was... I have a small D shaped pond, 5 X 12 at the longest points
about 30" deep. Any suggestions?

Tetra makes a "deep water" line of pumps, of which the smallest one
should work fine. By deep water, they mean a bit higher pressure for
tall tanks.

Use straight plastic tubing, running straight down so no water collects
(and freezes) in it. A straight pipe, straight down is the only thing
that has worked for me.