sevenseasupply 3 zebra nerite fresh water aquarium snails sevenseasupply totally safe for live plants, live shrimp, and live fish. these are juvenile nerite snails, size of 1/2" diameter, 0.5 inch nerite snails are widely known as one of, if not the most, voracious algae-eaters out of any snail. great for aquarium hobbyists who don't want snails reproducing in their tanks! warning: your order maybe delay or cancel due to weather. please check your local weather before order. local weather should be above 50 degree fahrenheit. pictures are for references only. each snail's shells and color are diverse and totally unique! select sevenseasupply as a seller at for 100% satisfaction guarantee. please select expedited shipping for best result and condition of live snail if your overnight local weather is below 50'f