Hi A,
You wrote
Really! In freshwater aquariums, snails are a nusciance, so I just assumed
that they would be rapidly multiplying little pests in the wild too.

You know that phrase might have to be amended...
snails don't survive *in* my pond. The koi eat them up. They live in the filter
and mulitply in there.
They also live in the fishless frog bog and there are a lot of them, but there
is a lot of debris in the bog to eat.

Land snails who are hapless enough to come under my gaze are tossed into the
pond and are snarfed up by the fish. The goldfish nip at them and the koi
swallow them and crunch them up.

(Which reminds me, rec.ponds - where *exactly* are koi teeth?)


k30a