Meet Zig and Zag, the two new Zebra Nerite Snails.
They were chosen for their ability to clean efficiently while NOT reproducing.
The fuzzy green sphere in the background of both pictures is a Marimo ball, named "Moe" by my granddaughter. She felt that the Panda Tetras, Eenie, Meanie, and Miny really needed a Moe to make a complete quartet.