Predatory Carp (Chanodichthys erythropterus)

Predatory Carp — Chanodichthys erythropterus

Speed, flash, and river instinct

The Predatory Carp, also known as the Redfin Culter, is a sleek open-water hunter built for speed. A long, silver torpedo body reflects light like polished chrome, while bright red to orange fins add sharp contrast — especially when the fish turns in current. Unlike traditional bottom-feeding carp, Chanodichthys erythropterus is an active midwater predator that chases down smaller fish with precision.

Native to large river systems of East Asia, this species thrives in flowing, oxygen-rich water. It rarely rests, constantly cruising open lanes and reacting instantly to movement. At feeding time, the transformation is dramatic — explosive bursts, quick turns, and coordinated strikes if kept in groups.

Growing to 24–40+ inches in proper conditions, the Predatory Carp becomes a serious river display fish suited for very large aquariums or indoor pond systems. Its combination of speed and schooling behavior adds life and energy to big predator setups.

Aquarium Setup

• Minimum Tank Size: 300 gallons (8 ft+ length recommended; pond setups ideal long-term)

• Substrate: Sand, smooth gravel, or river rock

• Flow: Moderate to strong current

• Décor: Mostly open swimming space with structure along edges

• Lighting: Moderate to bright

• Cover: Tight lid required — powerful jumper

• Oxygen: High dissolved oxygen essential

Tank Mates

Best with large, fast, confident species:

• Large catfish

• Datnoids

• Arowana (space dependent)

• Large barbs

• Other strong riverine fish

Avoid slow or delicate species and anything small enough to be eaten.

Water Parameters

• Temperature: 68–75°F (20–24°C)

• pH: 6.5–7.5

• Hardness: Moderate

• Filtration: Oversized filtration required

• Water Quality: Pristine, well-oxygenated water critical

Diet

Carnivorous tendency:

• High-quality predator pellets

• Shrimp and prawn

• Fish fillet

• Insects