Orca Woodcats originate from slow-moving tributaries and flooded forest environments in Brazil within the Amazon basin. These habitats are often filled with submerged branches, roots, and leaf litter that create shaded areas and natural shelter.

The water in these environments is frequently soft, slightly acidic, and rich in tannins, with complex structures formed by driftwood and fallen branches. Orca Woodcats spend much of their time hiding among these structures during the day and emerge at night to hunt for small invertebrates.

The Orca Woodcat naturally inhabits environments filled with submerged branches, root structures, and shaded forest waterways. Designing the aquarium around driftwood and dim lighting helps recreate the calm environments where this species feels most secure.

Instead of focusing heavily on planted layouts, an Orca Woodcat aquarium is best designed to resemble a tangle of submerged wood and roots, with plants used sparingly to soften the structure and create shaded areas.

Plants

Hardy plants that attach to wood or tolerate lower light work best in aquariums designed for woodcatfish.

• Anubias species – Foreground to midground. Durable plants that attach easily to driftwood and thrive in shaded aquariums.

• Java Fern (Microsorum pteropus) – Midground to background. A hardy epiphyte that grows attached to wood or rock and fits naturally into driftwood layouts.

• Java Moss (Taxiphyllum barbieri) – Foreground to midground. Excellent for covering wood and encouraging biofilm and microfauna, which contribute to a healthy aquarium ecosystem.

• Cryptocoryne species – Foreground to midground. Useful for softening the edges of driftwood structures.

Floating plants such as Frogbit or Salvinia can also be used to diffuse lighting and create the shaded environment these fish prefer.

Hardscape

Hardscape should be the main feature of an Orca Woodcat aquarium.

Recommended materials include:

• Branching driftwood or root structures

• Malaysian driftwood or spider wood

• Rock caves or shaded crevices

Creating wood piles, tunnels, and shaded hiding areas encourages natural behavior and helps these catfish feel secure during daylight hours.

Botanicals

Natural botanicals help recreate the tannin-rich environments common in Amazonian waterways. As they slowly break down, they release tannins and humic substances while encouraging the growth of biofilm, microbial life, and microfauna.

Aquatic Arts offers a curated selection of Aquatic Arts-branded botanicals, including:

• Aquatic Arts Indian Almond Leaves

• Aquatic Arts Catappa Bark

• Aquatic Arts Alder Cones

• Aquatic Arts Botanical Combo Pack

Aquascaping Tip

Orca Woodcats are primarily carnivorous and feed on small invertebrates and organic matter in nature. A varied diet helps maintain healthy growth and natural behavior.

Staple foods may include:

• Aquatic Arts Sinking Pellets, which are ideal for bottom-feeding fish

• Community pellets or micro pellets that sink slowly

Supplemental foods can include:

• Frozen foods such as bloodworms, brine shrimp, or daphnia

• Live foods such as micro worms, which are excellent for smaller catfish and nano species

Because these fish are most active at night, feeding during evening hours often produces the best results.

Orca Woodcats are peaceful and do well in calm community aquariums.

Suitable tank mates may include:

• Small tetras

• Rasboras

• Corydoras catfish

• Peaceful dwarf cichlids

• Other small community fish

Avoid aggressive or significantly larger fish that may harass them.

Orca Woodcats may prey on very small shrimp or shrimp fry, but they are generally safe with larger adult shrimp in well-structured aquariums.

Providing dense plants, moss, and hardscape helps create refuge areas for shrimp colonies.

Breeding Orca Woodcats in aquariums is not commonly documented, but like many driftwood catfish, they are believed to spawn in sheltered areas among wood or caves.

Providing stable water conditions, shaded areas, and abundant structure may encourage natural spawning behavior.

How big do Orca Woodcats get?

They typically reach about 2 to 2.5 inches in length.

Are Orca Woodcats aggressive?

No. They are peaceful catfish that do well in calm community aquariums.

Are Orca Woodcats nocturnal?

Yes. They are most active during evening hours and may hide during the day.

What do Orca Woodcats eat?

They accept sinking pellets, frozen foods, and live foods such as micro worms.

Do Orca Woodcats need driftwood?

Yes. Driftwood and caves provide important shelter and help replicate their natural habitat.