Delhezi Bichir (Polypterus delhezi)
 
The Delhezi Bichir, also known as the Armoured or Barred Bichir, is a prehistoric-looking, hardy, and highly sought-after species known for its striking banded pattern and dragon-like appearance. With its segmented armour plating and ability to breathe atmospheric air, it is a unique centrepiece fish for large aquariums. Best suited to experienced keepers, it requires spacious, well-filtered conditions and tank mates that are too large to be eaten.
 
Care Sheet
Scientific Name: Polypterus delhezi
Common Names: Delhezi Bichir, Barred Bichir
Origin: Congo River Basin, Central Africa
Temperament: Semi-aggressive, predatory
Adult Size: 30–35 cm
Life Expectancy: 10–15+ years
Difficulty: Intermediate–Advanced
Minimum Tank Size: 250 litres (larger strongly recommended)
 
Water Parameters:
Temperature: 24–28°C
pH: 6.5–7.8
Hardness: Soft to moderately hard
Water Flow: Moderate
Lighting: Low to moderate
 
Tank Setup:
Large tank with ample swimming room
Use sand or smooth gravel substrate
Provide caves, bogwood, and sturdy decor for hiding
Secure, tight-fitting lid — bichirs are powerful escape artists
Strong filtration with low to moderate flow
Works well in dim or tannin-rich aquariums
 
Feeding:
Carnivorous — prefers meaty foods:
Frozen prawns
Bloodworms
Whitebait / small fish pieces
Earthworms
High-quality sinking carnivore pellets
Avoid feeder fish (disease risk)
 
Behaviour & Compatibility:
Slow, methodical predator
Peaceful toward similar-sized tank mates
Will eat anything that fits in its mouth
Suitable tank mates: large cichlids, peaceful catfish, larger barbs, silver dollars
Avoid small fish, fin-nippers, and overly aggressive species
 
Breeding:
Very difficult in captivity
Requires very large tanks and specific seasonal triggers
Rarely achieved outside professional or public facilities