A peaceful, surface-active omnivore cyprinidae endemic to Taiwan, China; keep it in shoals of six or more — moderate care.
Care parameters
Water temperature
18–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
5.6–8 cm
Minimum tank
80 L
Water layer
Upper; surface-oriented; keep 6+
Difficulty
Moderate
Temperament
Peaceful
Origin
Taiwan, China
Species overview
Aphyocypris kikuchii is a Cyprinidae from Taiwan, China. In the wild it prefers clear streams, rivers and still waters; in the aquarium it stays peaceful. Plan on 5.6–8 cm of adult fish at 18–26 °C. Related profiles: Aphyocypris normalis, Aphyocypris chinensis, Aphyocypris moltrechti.
Native biotope
Habitat
Clear streams, rivers and still waters
Flow
Moderate flow
Dissolved O₂
Average oxygen needs
Aquascape & hardware
Substrate
Smooth gravel and sand with open floor space
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
Keep 6+; larger groups settle better
Diet
Omnivore; 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 it suitable for a community tank?
Only a cool-water, high-flow community of similar-sized, peaceful species. It will not thrive with tropical or slow-water fish.
Why are my fish fading and hiding?
The usual causes are warm water, weak flow, or a too-small group. Check temperature first — this species suffers quickly above 24 °C.
Is it rare?
It is a Taiwan endemic with a restricted range, and wild collection is regulated. Source captive-bred stock and never release aquarium fish into the wild.
How big do they get?
Small: 5–8 cm at maturity, which is why a 60-litre tank genuinely suffices for a handsome group of this active endemic.