question,
don't water falls, & other pumps running into the pond add oxygen??

& a reallly dumb question : is there a 'test' (besides dead fish) on how
much oxygen a pond has?? like other stuff you test for?


wrote in message
...
an air stone is the best way. yeah, over 75o or so you need to push air
into the
water. kmart air pump is fine for that sized pond. Ingrid