Aucha Perch — a Percichthyidae from Japan, territorial; line-of-sight breaks keep the peace. Reaches 8.2–12.1 cm; a pair claims a territory; give each a defensible cave. 10–23 °C.
Care parameters
Water temperature
10–23 °C
pH
7–7.4
GH hardness
2–5 dGH
Adult length
8.2–12.1 cm
Minimum tank
176 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Territorial; line-of-sight breaks keep the peace
Origin
Japan
Species overview
Percichthyidae species Coreoperca kawamebari comes from Japan. Territory is its whole worldview; rocks arranged as walls calm what open water cannot. It lives on the bottom. Adults reach 8.2–12.1 cm. A pair claims a territory; give each a defensible cave. Strong filtration, hardscape boundaries and a steady routine turn a brawler into a showpiece. Maintain 10–23 °C at pH 7–7.4. A rewarding species for the aquarist who reads before buying.
Native biotope
Habitat
River rapids and rocky lakeshores
Flow
Moderate to strong current
Dissolved O₂
High
Aquascape & hardware
Substrate
Gravel and rock
Hardscape
Rock piles and boulders
Plants
Hardy species
Temperament, diet & tankmates
Schooling
A pair claims a territory; give each a defensible cave
Diet
Omnivore with a protein lean — quality cichlid pellets
Recommended tankmates
Other cichlids of similar size and temperament — Balance aggression across the tank
Avoid keeping with
Delicate planted-tank species — Uprooted and outcompeted