I'm relatively new to aquarium keeping, and I have a snail tank with a few types of snails. I'm starting to see eggs crop up, and I just had a disturbing thought. I've read that some species are highly invasive. When I clean my tank and dispose of the water down a drain, what about all those eggs and possibly tiny snails? They shouldn't go into the water system, right? Is this something aquarists are concerned with, and how to we address it?
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