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Re: Apple Snails
>>From: "David W. Webb" <dwebb at ti_com>
>>Date: Tue, 14 Jan 1997 16:23:42 -0600
>>Subject: Re: Apple Snails
>>I keep apple snails in my heavily planted tanks along with red
ramshorn,
brown spotted ramshorn, pond, and trumpet snails. Among the Pomacea
species (apple snails and Columbian ramshorn snails are included), and
among mystery snails as well (mystery snails are large, livebearing
snails
from the northeast U.S.), I understand that most are voracious plant
eaters, but the apple snails are much less so than others.
In my tanks, apple snails will only eat dead or dying leaves and
roots.
They never touch the healthy leaves of any of my plants. Cryptocoryne
roots that stick up from the surface seem to be happy munching grounds
for
them as well, but they primarily seem to be interested in algaes and
my
algae wafers. I've been getting an egg-pouch per week out of my
latest set
or pearl apple snails since I put them in my 55g and began adding
weekly
doses of powdered limestone (all of my snails eat the limestone right
off
of the floor of the aquarium).
When I read a report of a ravenous plant-eating snail, I first wonder
what
type it is, then I wonder how healthy the plants in the tank are. I
only
run 160w of 2-year old light over my plants, so I'm not in the
hyper-bright
category, but my snails almost never eat my plants. I've begun to
gauge my
plants' health by whether or not the snails are feeding on them. If
the
snails begin to feed heavily on a plant, I know there is something
very
wrong with that plant.<<
Well, I have a number of different types of snails, but I have to
wonder if some of the variations I have are from interbreeding,
particularly the ramshorns. I've got several colour and shell shapes
including the red ramshorns, spotted and plain brown ones, and some
strange pinkish colored ones with a kind of squared off edge. Then I
have some pond in plain brown and spotted brow the Malayan
livebearing, the Columbian ramshorns and the regular brown apples and
golden apples.
The red ramshorns came in with a fish trade. That was a little over a
year ago and quite honestly I didn't really pay that much attention to
my snails before then. I've had the Columbians since August and both
the apples for about a month.
I put the Columbians in a 50 gal. planted tank in my front room. It's
in front of a window but gets only filtered sunlight and a 40 watt
fluorescent bulb. I just have Anubias, jungle val, hornwort and Amazon
swords in it because the fish are African cichlids. While the snails
were in there I got holes all over the swords and val, they both grow
great, just got holes in them. When I took the snails out the holes
stopped.
With the apples, I put them in my "pond" (a kiddie pool in the middle
of my fishroom floor). It had all floating plants in it, just simple
stuff hornwort, duckweed, frogbit. It was all gone within 2 weeks. So
the Columbians and apples have their own tank.
I've never had trouble with snails in my other tanks. I have around
20, 10 to 50 gallon tanks, with another 20 or so small tanks and
bowls, they are all planted and these were the only real instances of
snail problems with plants I've had. I don't know, in my limited
experience with Columbian and apple snails they seemed to be eating my
plants and I just thought that a person should be prepared for the
possibility that it might happen to them also.
Rhonda