sevenseasupply 6 nerite snails combo pack - 2 tiger nerite snails, 2 zebra nerite snails, 2 horned nerite snails - live snails sevenseasupply sevenseasupply - 100% guarantee alive on arrival only. we cannot guarantee after that due to un controllable of your aquarium condition are very. please read care instruction. nerite snails are widely believed to be the single best snail in the aquarium hobby for eating algae. they are totally safe with any fish, shrimp, or plants, and are completely peaceful. nerite snails require salt water to reproduce, so they will never overpopulate your aquarium (as some freshwater snails are known to do). tiger nerite snails range from 1/2 to 1 inch in size. they usually will remain around 1 inch throughout their lifespan, but the occasional snail will reach 1 1/2 inches! they do not eat plants (only algae), so they are perfectly suitable for planted tanks. recommended tank parameters: - ph level range: 6.5 to 8.5 - temperature range: 65 to 85 degrees fahrenheit - water type: medium hard - recommended aquatic arts tank mates: other types of snails (other nerite snails, mystery snails, sulawesi snails, etc.), dwarf shrimp (such as blue velvet shrimp, sakura fire red cherry shrimp, neon yellow shrimp, etc.). they can also be kept with small to medium-sized, non-aggressive fish. - additional notes: with all nerite snails, it's a good idea to make sure the water line in your aquarium isn't too high, as these snails tend to climb up beyond the water line. nerite snails do not tolerate water with high nitrate levels. snails are very sensitive to copper, so watch out for copper if you use tap water in your tank