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just about anywhere they want.... you must be really careful with snails. they can practically take over a system. the worst source is live plants. careful when adding live plants.... snails piggyback along on the roots and before you know it, you have an infestation. there are snails that do not lay eggs and reproduce in a home aquarium and these are the ones you would want to have. if you are using snails for algae control.... try feeding less, running the light less time and controlling your fish population.

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17y ago

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