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Dinosaur Bichirs (Polypterus spp.) are carnivorous, opportunistic predators with strong nocturnal feeding instincts. Their diet consists mainly of live prey, frozen foods, and protein-rich alternatives. Understanding their natural feeding habits and dietary requirements is crucial for keeping them h
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Dinosaur Bichirs (Polypterus spp.) are carnivorous, opportunistic predators with strong nocturnal feeding instincts. Their diet consists mainly of live prey, frozen foods, and protein-rich alternatives. Understanding their natural feeding habits and dietary requirements is crucial for keeping them healthy and thriving in captivity.
1Natural Diet in the Wild
In their native African freshwater habitats, Dinosaur Bichirs are bottom-dwelling ambush predators. Their diet includes:
Small Fish – Juvenile fish, slow-moving species
Insects & Larvae – Aquatic insects, beetles, mosquito larvae
Crustaceans – Shrimp, crabs, small crayfish
Worms – Earthworms, bloodworms, blackworms
Amphibians – Small frogs, tadpoles
Carrion – Scavenging on dead fish or decaying organic matter
They rely on their keen sense of smell rather than eyesight to locate food, often foraging in murky waters at night.
Best Diet for Captive Bichirs
A balanced, protein-rich diet is essential for growth, health, and longevity. Here’s a feeding chart for different food types:
| Food Type | Examples | Recommended Frequency | Notes |
|---|---|---|---|
| Live Foods | Guppies, ghost shrimp, earthworms, mealworms | 2-3 times per week | Stimulates natural hunting behavior |
| Frozen Foods | Bloodworms, brine shrimp, mysis shrimp, silversides | 4-5 times per week | High in nutrients; prevent food boredom |
| Pellets & Sinking Carnivore Sticks | Hikari Carnivore Pellets, Massivore Delite, Arowana Sticks | Daily | Ensures balanced nutrition |
| Meaty Foods | Chopped tilapia, shrimp, squid | 2-3 times per week | Avoid fatty meats like beef or chicken |
| Gel Foods | Repashy “Grub Pie,” DIY seafood mixes | Occasional | Enhances variety in diet |
| Feeder Fish (Occasional) | Guppies, mollies, goldfish (quarantined) | Rarely (1-2 times per month) | Risk of parasites; must be quarantined |
⚠ Avoid feeding:
❌ Goldfish & Rosy Red Minnows – High in thiaminase, which can cause vitamin B1 deficiency
❌ Processed Human Food – Spices, fats, and preservatives are harmful
❌ Overfeeding – Leads to obesity, fatty liver disease
Feeding Behavior & Strategies
Swallowing Whole: Bichirs lack true teeth but have powerful jaws for gripping and swallowing prey whole.
Nocturnal Feeders: More active during the evening, so feeding at dusk or night is ideal.
Slow Eaters: Unlike aggressive predators, Bichirs take their time chewing and swallowing.
Hunting Instincts: Live foods trigger their ambush-style hunting, making them more engaged.
How Often Should You Feed Your Bichir?
Juveniles (Under 1 Year) – 2-3 small meals per day for rapid growth
Sub-Adults (1-2 Years) – 1-2 meals per day
Adults (2+ Years) – Once per day or every other day
Pro Tip: Bichirs can go several days without eating, but consistency is key to maintaining optimal health!
Special Dietary Considerations
✅ Boost Growth: High-protein foods like silversides, worms, and shrimp
✅ Enhance Coloration: Foods rich in astaxanthin (krill, shrimp)
✅ Increase Longevity: A balanced diet of pellets, fresh meat, and occasional live food
✅ Stimulate Hunting: Release live ghost shrimp or worms for natural predatory behavior
By feeding a nutrient-rich, varied diet, your prehistoric predator will remain healthy, active, and vibrant for years to come!
What do you feed your Bichir? Let’s discuss below!
Tags: Polypteridae
This article was created with the help of AI tools and then reviewed, fact-checked, and edited by an Animals Top editor.
