Hi gals and guys, this snails are truly amazing, they are awesome addition to any fresh water community tank, or inverts tank, they do eat live plants, I found this info on internet: The Giant Colombian Ramshorn Snail, Marisa cornuarietis, is a large freshwater snail local across North and South America. With a maximum shell size of approximately 1.5 -1.75 inches, spiral in shape with vivid brown and gold coluring these snails prefer slow moving water where they will voraciously consume vegetation and animal waste, serving a useful purpose as scavengers. Entirely peaceful, these snails should be kept with tank inhabitants that will not make a meal of them (cichlids especially!) Offering algae tablets or vegetables is a good way to distract them from consuming aquarium plants. Here we are sending 3 young adult snails, 5-6 months old, about 3/4 to 1-1.25 inch. Shipping cost is $15 via USPS Priority Mail and Live Arrival is 100% Guaranteed, we use a super well insulated box and breather bags(let oxygen in and co2 out) and will include a heat pack or a cold pack if necessary. Thanks so much for looking!!! Hans & Patty