Planet Zoo 2 Pacific Bluefin Tuna — habitat, biome, size & which animals it can live with

Pacific Bluefin Tuna is one of the 130 Planet Zoo 2 launch species. It is housed in a Aquarium habitat, accepts the Open Sea biome, carries a no barrier requirement and is listed at no published size. It shares a biome and an enclosure type with 10 other species, so it can be mixed into a shared enclosure — 0 of those pairings are confirmed by Frontier's own text.

Pacific Bluefin Tuna

Every figure on this page comes from the official Planet Zoo 2 Zoopedia export rather than trailer footage: biome, enclosure type, barrier grade, size and the compatibility verdicts are all taken from the game's own data.

Size (M)—

Weight (M)—

Barrier—

EnclosureAquarium

BiomesOpen Sea

StatusNear Threatened

Where it lives in the wild
Pacific Ocean

Pacific Bluefin Tuna at a glance

Source: official Planet Zoo 2 Zoopedia export (130 species). Also on the searchable animal list.

Enclosure and barrier requirements

Pacific Bluefin Tuna needs a Aquarium enclosure and accepts the Open Sea biome. The barrier requirement is none at all, and that is the number to check before building: a Grade 4 animal behind a Grade 1 wall is the most common way a first zoo stalls.

Which animals can live with the Pacific Bluefin Tuna?

6 launch species share both a biome and an enclosure type with the Pacific Bluefin Tuna, so they are the only candidates for a mixed habitat. Of those, 0 are confirmed group-living by Frontier's own text and 6 are unverified — both are listed rather than presented as equally safe.

Species	Biome	Enclosure	Verdict	Evidence
Dolphinfish	Open Sea	Aquarium	Unverified	Frontier has not stated a social structure for this species.
Humphead Wrasse	Open SeaReef	Aquarium	Unverified	Frontier has not stated a social structure for this species.
Indo-Pacific Sergeant	Open SeaReef	AquariumExhibit	Unverified	Frontier has not stated a social structure for this species.
Ocellated Eagle Ray	EstuarineOpen SeaReef	Aquarium	Unverified	Frontier has not stated a social structure for this species.
Pacific Sardine	Open Sea	Aquarium	Unverified	Frontier has not stated a social structure for this species.
West Indian Manatee	EstuarineLakes & RiversMangroveOpen SeaWetlands	Aquarium	Unverified	Frontier has not stated a social structure for this species.

Rule: two animals can share an enclosure only when they share a biome and an enclosure type. Likely OK means Frontier's own Social & Reproduction text says both species live in groups; Unverified means the data does not say, so we do not guess. Pair-by-pair table: compatibility chart.

Same biome, but not compatible

4 of the species that accept the Open Sea biome cannot share an enclosure with the Pacific Bluefin Tuna, because one side of the pair is officially solitary. These are the pairings people ask about most, so they are spelled out rather than left as an unexplained gap.

Species	Biome	Enclosure	Why not
Great Hammerhead Deluxe	Open SeaReef	Aquarium	Great Hammerhead is solitary “As opposed to some other species of hammerhead, the great hammerhead shark is a solitary animal.”
Hawksbill Turtle	EstuarineMangroveOpen SeaReef	Aquarium	Hawksbill Turtle is solitary “Hawksbill Turtles are solitary and only interact with other individuals to mate.”
Indo-Pacific Leopard Shark	EstuarineMangroveOpen SeaReef	Aquarium	Indo-Pacific Leopard Shark is solitary “Indo-Pacific leopard sharks are usually solitary, but may gather in large groups on occasion for reasons unknown.”
Ocean Sunfish	Open Sea	Aquarium	Ocean Sunfish is solitary “Ocean sunfish are solitary animals.”

Close, but ruled out by enclosure type

2 species share at least one biome with the Pacific Bluefin Tuna but use a different enclosure type — a land habitat against an aquarium or a flying aviary — so they cannot be mixed however well the biomes line up.

African Penguin, Moon Jelly

Behaviour, size and weight

Pacific Bluefin Tuna is classed as Not stated in Frontier's Social & Reproduction notes: “Juvenile Pacific bluefin often form large schools, sometimes mixed with other tuna species, which helps reduce predation risk and improves foraging efficiency. As they grow older, their scho…” On size the game lists no published size for the male. Size and weight together decide the minimum habitat footprint, so use the female figure when you are sizing a breeding pair rather than a display animal.

FAQ

Related

All 130 animals · Full compatibility chart for Pacific Bluefin Tuna · Aquarium animals · Aviary birds · Deluxe edition animals · System requirements