A pedicure, manicure, and massage spa water treatment system is disclosed. The pedicure, manicure, and massage spa water treatment system provides a container for containing spa treatment water and multiple fish, a spa water treatment container having a first spa water treatment section hydraulically connected to the container and a second spa water treatment section hydraulically connected to both the container and the first spa water treatment section. The spa treatment water hydraulically and sequentially flows from the container to the first spa water treatment section, to the second spa water treatment section, and subsequently to the container. The spa treatment water hydraulically flows from the container through a filtering device prior to hydraulic introduction to the first spa water treatment section and forming filtered spa treatment water.