Thetis is a water planet, like Alba, but has acid, more of a beach theme—it has coral, shells, and water (of course)—and a sea gods theme—mobs with magic and tridents. It also contains Portal Chests to get to Mykon.
Thetis is the name of a sea nymph or sea goddess in Greek mythology. She was one of the 50 Nereids, daughters of the god Nereus (The Old Man of the Sea) and Doris, a sea nymph. This explains Thetis's (the planet) beach, ocean and sea theme, complete with corals, shells, tridents, and more.
 Getting to Thetis
 Night only
 Night Only
Unique fish that can be caught only on Thetis are as follows: