African Butterflyfish Care Guide (Pantodon buchholzi)

The African Butterflyfish (Pantodon buchholzi) is one of the most unique and visually striking freshwater fish in the aquarium hobby. With its enormous, wing-like pectoral fins, upturned mouth, and prehistoric appearance, it looks like nothing else in the trade. When viewed from above, its spread fins resemble a butterfly in flight—hence the common name.

This species is the sole surviving member of the family Pantodontidae, a lineage that dates back to the Late Cretaceous period. It is a distant relative of arowanas and other bony-tongue fish (Order Osteoglossiformes). Native to the slow-moving, vegetation-choked waters of West and Central Africa, it has evolved into a highly specialized surface predator capable of jumping and gliding short distances to catch flying insects or escape predators.

African Butterflyfish have a deep, laterally compressed body with a blunt, upward-facing snout. Their most distinctive feature is the pair of massive pectoral fins that extend outward like wings, allowing them to glide short distances above the water surface. The dorsal and anal fins are set far back on the body, and the caudal fin is broad and powerful—together these propel the fish out of the water during jumps. Coloration is a mottled gray-brown camouflage pattern that mimics a dead leaf floating on the surface. The eyes sit high on the head, constantly trained upward to spot prey. Adult size reaches 4-5 inches (10-12 cm) in captivity, up to 5 inches (12 cm) in the wild.

In the wild, they inhabit slow-moving and still waters in creeks, lakes, swamps, and quiet backwaters of streams and rivers across West and Central Africa. These habitats are typically ‘blackwater’—tannin-stained, slightly acidic, and soft—with dense floating and overhanging vegetation providing cover. Water movement is minimal, and the fish spend most of their time motionless at the surface, camouflaged among floating debris, waiting to ambush prey. They are crepuscular, becoming most active during dawn and dusk.

The most critical factor in housing African Butterflyfish is surface area and a secure lid. These fish are expert jumpers capable of leaping several feet to catch insects or escape predators. A standard 30-gallon aquarium is the absolute minimum, but a 40-gallon breeder or larger with a footprint of at least 36×12 inches (90×30 cm) is highly recommended. The width of the tank is far more important than the depth—shallow, long tanks are ideal.

A tight-fitting lid with NO gaps is absolutely non-negotiable. Even small openings will be exploited. Use a solid glass canopy or mesh secured with weights. Keep the water level 1-2 inches below the lid to prevent impact injuries during jumps.

Provide dense floating vegetation (Amazon Frogbit, Water Lettuce, Salvinia, Hornwort) to diffuse light, provide security, and replicate their natural habitat. A dark substrate helps them feel less exposed.

African Butterflyfish are adaptable but thrive best in conditions that mimic their West African blackwater habitats.

Temperature

Maintain 75–86°F (24–30°C), with 77–80°F (25–27°C) being optimal. Stable temperature is more important than the exact number.

pH

Maintain 6.0–7.5. Wild-caught specimens prefer the acidic end (6.0-6.5), while tank-bred individuals tolerate up to 7.5.

Hardness

Soft to moderate: 2–12 dGH. Wild-caught fish require softer water (2-6 dGH). High carbonate hardness (>5 dKH) inhibits their natural mucus coat production, increasing vulnerability to columnaris infections.

Water Flow

Keep it very gentle. Strong currents disrupt their surface feeding and cause chronic stress. Use sponge filters or heavily baffle hang-on-back/canister filter outputs.

African Butterflyfish are strict surface insectivores and piscivores (obligate carnivores). Their upturned mouth, high-set eyes, and enormous pectoral fins are evolutionary adaptations for snatching prey from the water’s surface tension line. They will completely ignore any food that sinks past the top 1 inch (2.5 cm) of water.

• Staple Diet: High-quality floating carnivore pellets or sticks (large enough to attract attention).
• Live Foods: Live insects are the best food—small crickets, wingless fruit flies (Drosophila), gut-loaded mealworms, spiders, and flies. They will eagerly hunt these across the tank surface.
• Frozen Foods: Frozen bloodworms, brine shrimp, and krill—offered floating.
• Avoid: Standard sinking pellets, dry flakes, and any food that sinks immediately.

Feed small portions 2-4 times daily. Overfeeding fouls the calm surface water they require.

Breeding African Butterflyfish is challenging but achievable with careful environmental simulation. They are egg layers that spawn at the water surface among floating plants. Sexing is possible by examining the anal fin: males have a modified anal fin with elongated rays forming a tube-like structure, while females have a rounder, unmodified anal fin and grow slightly larger and heavier.

Breeding Simulation

1. Dry Season (14 days): Lower water level to 4-6 inches (10-15 cm) and raise temperature to 84°F (29°C).
2. Rainy Season Trigger: Perform a massive 60% water change using cool, soft RO water (pH 6.0, 2 dGH) over 3 hours.
3. Add Floating Plants: Introduce dense floating layers of Salvinia or Amazon Frogbit.
4. Spawning: Occurs at night under cover. The female deposits 100-200 dark, floating eggs among the plants.
5. Egg Care: Eggs hatch in 36-48 hours. Remove parents immediately to prevent egg predation.
6. Fry Care: Fry stay at the surface and require tiny live foods that float—infusoria and paramecium for the first 5 days, then newly hatched baby brine shrimp delivered at the surface.