Can Bearded Cory and Helicopter Catfish Live Together?

Bearded Cory is a peaceful species (2/10), while Helicopter Catfish is highly aggressive (9/10). This notable difference means Helicopter Catfish may occasionally assert dominance over Bearded Cory.

Large aggression gap (7 points) between Bearded Cory and Helicopter Catfish increases stress risk for the more peaceful fish.

Bearded Cory and Helicopter Catfish both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Worth noting: Helicopter Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

There is no temperature overlap between Bearded Cory (16–23°C) and Helicopter Catfish (24–30°C). This fundamental mismatch makes long-term cohabitation impractical.

Both fish can tolerate a pH between 6 and 7.4. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 4–12 dGH. Regular testing will ensure conditions stay within this range.

To house Bearded Cory and Helicopter Catfish together, plan for an aquarium of at least 4000 litres with a minimum length of 400 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Floating. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Bearded Cory and Helicopter Catfish are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.