If you keep fish in an aquarium, you might want to put some snails in too! Snails can be very helpful. They clean the tank by eating the dirt that builds up on the glass and other surfaces. If the water gets too dirty, the fish will die. Snails can help keep your fish healthy.
水槽で魚を飼うとき、巻き貝も入れるのはどうですか？巻き貝はとても役に立ちます。ガラスなどにたまる汚れを食べることで水槽を掃除してくれます。水が汚れすぎていると魚は死んでしまいます。巻き貝は魚の健康を助けてくれます。
