At PetSmart, we never sell dogs or cats. Waiting periods, annual deductible, co-insurance, benefit limits and exclusions may apply. The qualifying subtotal excludes any Repeat Delivery orders or One-Time delivery orders. the sole discretion of PetSmart. My first tank (~8gals) just finished cycling and I wanted to add two nerite snails to the mix. Nerite Snails are used in aquariums of all sizes and do not normally die in transit, not in Summer, not in Winter! In fact, nerite snails are widely believed to be the single best snail in the aquarium hobby for obliterating algae off of glass, rocks, live plants, driftwood, and other types of decorations. A well-balanced Freshwater Snail diet consists of: 1. value $75. Black Racer Nerite Snail at PetSmart. The shell is yellow in color with thick black swirls along the edge. n Use of copper-based medications is toxic to invertebrates. Monthly:change 10-25% of the total volume of water every 2-4 weeks, or as needed. Hey all, looking for 4-6 nerite snails of any variety (other than horned), my lfs never seems to have any or get any when we order them, and without … He has been hard at work and is actually fun to watch.