5 Ramshorn Snails Algae Eater Live Freshwater Aquarium Snail -1/8 to 1/2 inch long By SoShrimp 5 Ramshorn Snails for freshwater aquarium. Snail Size: approximately 1/8" to 1/2". Very good at cleaning algae off the glass or left over food. Free moss will be included. Live Arrival Guaranteed.