Japanese Trapdoor Pond Snails

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Minimum Purchase:
10 units
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Product Overview

Black Japanese Trapdoor Snails (Viviparis malleatus)

The Black Japanese Trapdoor Snails (Viviparis malleatus) are the preferred snail species for pond owners and water gardeners. Japanese Trapdoor Snails are one of the few varieties that will survive in northern climates. Pond snails are helpful in keeping algae under control in your pond as they groom your plant containers, rocks, liner sides and plants. Trapdoor snails will consume excess fish food, fish waste and decaying leaves from the bottom of the pond. Japanese Trapdoor Snails are live-bearing and only breed twice a year. They will not over reproduce and become a nuisance like egg laying snails. To have a positive effect on algae growth, a minimum of 10 snails per 50 square feet is necessary. Large natural ponds would require at least 200 snails per acre to be effective.

Minimum order of 10


(4 reviews) Write a Review

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  • 5
    Good Snails

    Posted by Emmaleigh M Paul on Jun 4th 2021

    Good snails, much more affordable than other sources. Happy to be able to afford a decent quantity for a large pond.

  • 5
    Japanese Trapdoor Snails

    Posted by Roger Williams on Jun 10th 2020

    To be frank, there is not much to say, as the snails didn't say much. I ordered 10, 11 arrived. Who knows what they did with their quiet time, but it certainly isn't social distancing! Following instructions, I put them in the pond in the shade of a sideways bucket the evening they arrived, and by morning they were all off, making trails all over the pond liner. So I guess we can count that a success!

  • 5
    Everything was great

    Posted by Faith on May 12th 2020

    They were all alive and as promised

  • 5
    Huge Snails!!!!

    Posted by Rebecca Burriss on May 25th 2016

    The snails were so big for the price. I was not expecting that. They were all healthy nad doing fine.