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Piscciss[1] is an artificial[DM 1] planet, and the home planet of the Piscciss Volanns,[pop-up 1][2] Piscciss Premanns, and several other aquatic species.
Landscape
Piscciss can be described as a large, planet-sized mass of ocean, with the only land being its central core, which makes up less than 2% of the planet's total mass.[3] Piscciss' water is bound by an artificial gravitational multiplier at the center of the core, which generates centripetal force, keeping a liquid atmosphere held together.[4][1]
Despite this absence of land, seaquakes and tremors happen fairly frequently.[4][1]
Weather
It has been shown to thunderstorm on Piscciss, with thick murky clouds.[1]
Society

Most of the species on Piscciss are predatory.
Piscciss Volanns inhabit depths closer to the surface, and are not considered "native" to the waters further down, which are inhabited by more fish-like species.[4][1]
However, Piscciss Volann society takes it upon themselves to venture down and heavily guard the core of the planet, and even separate themselves from its gravitational multiplier by way of an air-filled room. This makes it the most inaccessible place on Piscciss.[4][1]
History
Background
Before the events of the Original Series, Piscciss had engaged in multiple wars with Pyros. A notable individual who fought was Kraab, a Piscciss Premann who received incredibly severe injuries as a result and was forced to substitute 95% of his body with cybernetics.[pop-up 2][5]
Ultimate Alien

Piscciss first appeared in Deep, when Ultimate Aggregor went there to get the second piece of the Map of Infinity, which was disguised as the planet's Centripetal Accelerator. Magister Pyke was the first to intercept Aggregor, and barely survived. As per Plumber procedure, he contacted Ben's team, who flew directly there in the Rustbucket 3. After diving in and getting ambushed by local fauna that broke the ship and forced them to wear diving suits, they met up with Pyke, who took them to the core. Inside, Ben and Kevin found Aggregor stealing the Accelerator and escaping. This caused the planet's stable atmosphere to start breaking, and large chunks of its water to begin floating away.
Ben chased after Aggregor, while Pyke and some Piscciss Volann guards blamed Kevin and Gwen for deceiving them and started to attack them. Outside the core, some other guards held up Ben, which allowed Aggregor to escape with the map piece. Having lost the chase, Ben travelled back to the core. After realizing what the missing gravitational multiplier did for the planet, he transformed into Goop. He took his Anti-Gravity Projector and placed it in the machine that held the multiplier, figuring his device could emulate its effects. As a result, Goop was pulled into the machine and atomized: spread across the entire planet's water. Just as everyone thought him dead, Goop's essence started growing in the chunks of water, which began slowly being drawn back together, eventually fully restoring the planet's integrity. Later, Pyke and the others thanked Ben and his team for saving the planet, and repaired their ship.
Known Inhabitants
- Piscciss Volanns
- Magister Pyke
- Piscciss Volann Actor (formerly)
- Patelliday (formerly)
- Piscciss Volann Prisoner (formerly)
- Piscciss Volann Thug (formerly)
- Piscciss Premann
- Kraab (formerly)
- Giant Sea Squid/Arachnid
- Blowfish's species
- Blowfish
Among the inhabitants that dwell deeper are some species that resemble barracuda with sharp teeth; a swordfish-like species that can regrow and shoot out its beak as a projectile; and an eagle ray-like species.[1]
Known Visitors
Appearances
Ultimate Alien
Season 2
- Deep (first appearance)
Books
Cartoon Network Action Packs
Ben 10
- Alien Data Files: Ripjaws (on a screen)
Video Games
Ultimate Alien
Etymology
The name Piscciss is play on word "Pisces", which means fish.
Trivia
- Matt Wayne once stated that Kork's Species were predators of the Piscciss Volanns. [MW 1] However, Derrick J. Wyatt disagreed with this, stating that he was not a native of Piscciss and therefore leaving his homeworld ambiguous.[DJW 1]