06-02-2011, 12:35 PM
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it is totally dependent on type of snail. Apple snails found in the stores will not breed alone, but you may have purchased a pregnant one. They can hold eggs for a while. The eggs would be laid at the waterline to stay moist, if you dont want more snails, scrape off the eggs or push them into the water. Many snails found on plants that are small and hitchhike into your tanks are differnt, some will breed on their own, IME, pond snails will breed with themselves and MTS will do so as well. MY ramshorns also breed with themselves but i have heard a lot of reports that many ramshorns cannot breed alone so that one just depends on what kind you have. All of the snails will feed on extra algae wafers, i feed my fish algae wafers and the portions are always too big, i just leave it for my MTS to clean up. I also have around 50 mts snails, all from 1 snail a couple years ago. As long as you are not making food too easily accessible, they will control their own population.