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Re: Aquatic Plants Digest V3 #713

On Wed, 16 Dec 1998, Steven Friedman wrote:
> Date: Mon, 14 Dec 1998 11:01:10 -0800
> From: "Steven G. Friedman, M.D." <sfried at nshs_edu>
> Subject: snail-eating plants

Really?  None of my  plants are snail-eating!  Where do you get them? :-)


> Little has been written about the effect of snails in planted aquariums, =
> until the past few days.  I too agree that chemical eradication should =
> be a last resort.  I also wonder how many poople consider snails to be a =
> problem.

Aeshetically, I don't like heavy snail infestations.

> I have a 20 gal. planted aquarium with many (80-100) snails (I =
> believe they are ramshorn) and they cause no harm to plants or fish.  =
> What exactly do snails do in a planted tank (are they scavengers?) and =
> are they a cause for concern or intervention?  It seems to me they are =
> harmless.

Some snails are algivores, some larger snails will eat plants and some are
detritivores - they eat whatever they find laying on (or in) the bottom
or on leaves.  Except for the few that will damage plants, snails are
mostly beneficial additions to a tank.  Their populations tend to
expand beyond what I call reasonable bounds.

Roger Miller