Formosania lacustre

Family: Balitoridae

A peaceful algivore balitoridae from East Asian freshwaters — moderate care.

Care parameters

Water temperature
18–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
8.4–12 cm
Minimum tank
120 L
Water layer
Bottom; rests and forages low
Difficulty
Moderate
Temperament
Peaceful
Origin
东亚淡水水系

Species overview

Formosania lacustre of the family Balitoridae is an aquarium-kept Balitoridae. Peaceful and algivore; quality prepared foods with variety, it grows to 8.4–12 cm and prefers 18–26 °C water. Other Formosania species in our database include Formosania tinkhami.

Native biotope

Habitat
Clear streams, rivers and still waters
Flow
Strong current with heavy aeration
Dissolved O₂
Demands high dissolved oxygen

Aquascape & hardware

Substrate
Gravel
Hardscape
Driftwood, water-worn stones and shelters that mimic the native biotope
Plants
Hardy plants on hardscape; keep the floor open

Temperament, diet & tankmates

Schooling
Solitary, pairs or small groups
Diet
Algivore; quality prepared foods with variety
Recommended tankmates
  • Amur False Gudgeon — Similar size and water needs
  • China-Bitterling — Similar size and water needs
  • Acanthorhodeus chankaensis — Similar size and water needs
Avoid keeping with
  • Large aggressive cichlids — Bullying and injury risk
  • Known fin nippers — Constant stress and fin damage

Breeding & notes

Sexual dimorphism
Males are typically slimmer and more intensely colored; females fuller-bodied
Breeding method
Spawning; condition with rich foods and simulate seasonal changes

Frequently asked questions

Is Formosania lacustre easy to keep?

A moderate-level species: peaceful; stable water matters more than fancy equipment.

What temperature and water chemistry does Formosania lacustre need?

Aim for 18–26 °C. Standard heater to hold the mid-range steadily; community-standard range; verify locally.

How big does Formosania lacustre get, and what tank size?

Expect 8.4–12 cm as an adult, living bottom; rests and forages low. A 120 L tank or larger gives it room.

What does Formosania lacustre eat?

Algivore; quality prepared foods with variety. It forages naturally over gravel, so let some food reach the bottom.

Can Formosania lacustre live with other fish?

Yes, with care. Peaceful — pair it with Amur False Gudgeon — Similar size and water needs, China-Bitterling — Similar size and water needs, Acanthorhodeus chankaensis — Similar size and water needs and skip Large aggressive cichlids — Bullying and injury risk, Known fin nippers — Constant stress and fin damage.

Where does Formosania lacustre come from?

Its home waters are 东亚淡水水系 — clear streams, rivers and still waters, with strong current with heavy aeration.

How does Formosania lacustre breed?

In the aquarium: spawning; condition with rich foods and simulate seasonal changes. Males are typically slimmer and more intensely colored; females fuller-bodied.