1Acts as a natural cleaning agent, maintains ecosystem balance, and adds a vibrant aesthetic touch. 2Snails benefit the aquarium by cleaning algae, getting rid of food debris, and improving sand aeration. (The snail or shrimp, 20 pieces, and the snail, 5 pieces) Of course, the large one is 50, and the pregnant female is 300. Contact WhatsApp without ( Phone number appears when clicking the contact button )