Are Aquarium Snails Dangerous?

Are Aquarium Snails Dangerous? Aquarium snails can enter the freshwater tank through a variety of means and, in most cases, they are completely harmless. Do aquarium snails carry disease? Freshwater snails carry a parasitic disease called schistosomiasis, which infects nearly 250 million people, mostly in Asia, Africa and South America. “It’s one of the world’s