This diminutive snail will spend almost all of its time underneath the sand in your tank consuming detritus, making it an excellent substrate cleaner - for its size. What sets this snail apart from the Cerith snail is that it will seek shelter not only under the sand, but under the sand underneath your live rock or decorations. Because of its small size your rocks and decoration are in no danger of being moved by these snails. The snail's tiny size allows it live in the low oxygen areas that most animals cannot. However, because they are tiny they do no consume much food, and this species is not a cost effective cleaner. We continue to carry the Dwarf Planaxis because it is an interesting curiosity species for the pico aquarist or for the hobbyist looking for something different.
We have found these snails to be quite hardy, and can handle a fairly wide range of normal saltwater aquarium parameters. The Dwarf Planaxis Snail ranges from 1/5 of an inch to 3/8 of an inch, making it very small.