Creature record
Mosquitofish - Petit Planet Creature
Where to find Mosquitofish in Petit Planet: habitat, season, time, weather, catch method, size range and sell values from the Final Beta.
Mosquitofish
People want the mosquitofish to take out as many mosquitoes as possible, but it still insists on snacking on things it shouldn't.
On this page
At a glance
- Type
- Freshwater Fish
- Group
- Fish of All Seasons
- Habitat
- River
- Distribution
- All Regions
- Season
- Year-Round
- Time
- All Day
- Weather
- Any Weather
Size & value
1.5 – 2.5 cm
Species size range recorded in the Final Beta.
Quality and star rating both affect the sale price. MAX-size catches have a glowing aura.
How to catch Mosquitofish
Use the Fishing Rod. The exact approach depends on the creature’s category and, for shore-dwellers, its species type.
- Cast the Fishing Rod into the right water: rivers and lakes for freshwater fish, coastal waters for saltwater fish.
- Wait for the nibbles, then strike when the line bites down.
- Common freshwater fish and gray saltwater fish can usually be caught straight away after the bite.
First catch: the creature is added to the Omnidex. Offer it to Mors at the Omni-Gallery to put it on display and unlock its Omnipedia entry.
Where and when to find it
Habitat: River. Distribution: All Regions.
Season: Year-Round. Time: All Day. Weather: Any Weather. If two of those tags are restrictive, check the creature tracker before you set out.
Omnipedia
Coolwater Zone · Gambusia affinis
After discovering that mosquitofish prey on mosquito larvae, the species was introduced to rivers and lakes as a biological control for mosquitoes.
However, researchers soon discovered that mosquitofish also prey on frog tadpoles and other fish eggs, causing ecological damage.
What was meant to solve a mosquito problem inadvertently created a new "fish problem." A classic case of a solution backfiring.
Where this data comes from
Compiled from official Petit Planet announcements and the community-maintained Petit Planet Wiki (CC BY-SA 4.0), then checked against the Final Beta build. Data snapshot: October 30, 2026. Values can change before the December 4, 2026 launch.
- Creature — The Petit Planet Wiki
- The Petit Planet Wiki (community)
- Petit Planet official website
- Community wiki page
Fan-made reference. Game names and assets belong to HoYoverse. See sources & credits.
