Micropercops swinhonis

Family: Odontobutidae

A semi-aggressive carnivore odontobutidae from China, the Korean Peninsula — moderate care.

Care parameters

Water temperature
18–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
4.3–6.2 cm
Minimum tank
62 L
Water layer
Bottom; rests and forages low
Difficulty
Moderate
Temperament
Predatory — best kept singly
Origin
朝鲜半岛

Species overview

Micropercops swinhonis of the family Odontobutidae is an aquarium-kept Odontobutidae. Predatory — best kept singly and carnivore; quality prepared foods with variety; regular frozen or live foods, it grows to 4.3–6.2 cm and prefers 18–26 °C water. Other Micropercops species in our database include Micropercops cinctus.

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
Solitary, pairs or small groups
Diet
Carnivore; quality prepared foods with variety; regular frozen or live foods
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

Why does it barely move?

Ambush predators earn their living by waiting. A sleeper that holds position near cover, breathes calmly and eats is healthy; genuine lethargy comes with clamped fins and refusal of food.

Will it eat my shrimp?

Juvenile shrimp, yes. Adult cherry shrimp are usually safe from a 5 cm sleeper, but shrimplets will be harvested.

Can I keep several together?

Yes, and they are more entertaining in a small group, spread across individual patches of cover. Aggression is mild and disputes are mostly posturing.

Can they live with bettas?

No — the betta's warmth and temperament both clash; this is a temperate species for cool, quiet, dimly lit setups.