Many aquariums and ponds have snails, which are there on purpose, or by accident. Aquarium keepers may use snails to help reduce algae. More often than not, these algae-eating snails tend to multiply quickly. They are both dirty animals (leaving more detrius daily), and carry disease in many cases. In a pond situation, snail populations may affect the health of fishes and more. What’s more, algae-eating snails are not really effective in reducing algae.
If you feel that your aquarium or pond has far too many snails, a natural way to control them is the Assassin Snail! I personally do not like adding chemicals when there is a natural solution. Assassin Snails have the sole job of eating most any snail, other than themselves.
They are not dirty, they do not leave detrius like algae-eating snails. They tend to breed the best with sand in the aquarium/pond. They lay eggs down in the substrate, no matter if is gravel or other rock; my personal preference is sand. They do not disturb fish or shrimp at all. They are also great food for puffer fish and marbled crayfish. See pics and more information at https://en.wikipedia.org/wiki/Anentome_helena
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