English community guide
Light's Bitterling
Light's Bitterling in Petit Planet: habitat, time, weather and recorded one-, two- and three-star selling prices. Checked against the community wiki.
At a glance

River mussels also rely on it to give birth to baby mussels.
Where and when to find it
- Habitat
- River
- Distribution
- All Regions
- Time
- All Day
- Weather
- Any Weather
- Season
- Year-Round
- Type
- Freshwater Fish
- Minimum size
- 8
- Maximum size
- 16
Selling prices
- ★ catch
- 36 Dough
- ★★ catch
- 40 Dough
- ★★★ catch
- 47 Dough
Catalog sorting uses the one-star price. A blank source value is shown as not recorded, rather than estimated.
Omnipedia
- Scientific name
- Rhodeus sinensis
- Region
- Coolwater Zone
The Light's Bitterling lays its eggs inside freshwater mussels. It might seem like the bitterling is "using" the mussel, but as it gets close, the mussel also releases its own glochidia to latch onto the fish's body as parasites. However, this seemingly mutual relationship comes with an "unfair" small print: the bitterling merely "rents" a temporary space inside the mussel, whereas the mussel's parasitic larvae can have lasting effects on the poor fish.
Keep exploring
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Sources & version
Adapted from The Petit Planet Wiki under CC BY-NC-SA 4.0.
Checked 2026-10-20. Source revision 30782 (2026-10-01). These are beta records; values can change. Unrecorded values remain unknown.