Description
Brown Crayfish (Procambarus clarkii – Brown Morph / Wild Type)
📌 Basic Info
Scientific Name: Procambarus clarkii (wild-type brown form)
Common Names: Brown Crayfish, Wild Crayfish, Mudbug, Crawdad
Family: Cambaridae
Origin: Southern USA, Mexico; widely introduced worldwide
Size: 4 – 6 inches (10 – 15 cm)
Lifespan: 2 – 4 years (longer with good care)
Tank Zone: Bottom dweller
🌊 Water Parameters
TDS: 150 – 300 ppm
pH: 6.5 – 8.0
Temperature: 18 – 26°C (65 – 79°F)
Hardness: 6 – 15 dGH
🦞 Characteristics
Natural earthy brown coloration, sometimes with olive, gray, or rust-colored patterns.
Excellent camouflage in natural habitats like rivers, ponds, and muddy bottoms.
Strong claws, very hardy, and adaptable to different environments.
Digs burrows and may create tunnels in aquarium substrate.
Aggressive and territorial; will fight with tankmates or other crayfish.
🍽️ Food
Type: Omnivorous scavenger.
Diet: Sinking pellets, algae wafers, blanched vegetables (spinach, peas, cucumber), protein foods (shrimp, bloodworms, snails, fish food).
Feeding Schedule: Once daily; remove uneaten food.
🛠️ Tank Setup & Maintenance
Tank Size: Minimum 30 gallons for one adult.
Filtration: Strong filter with high oxygen levels.
Decor: Driftwood, rocks, caves, PVC pipes – important for hiding and territory.
Substrate: Sand or gravel; allows natural digging.
Water Changes: 25–30% weekly.
👥 Social Behavior
Solitary and best housed alone.
Can live with fast, upper-level fish like danios, tiger barbs, or giant danios.
Dangerous to slow-moving fish, snails, or shrimp – may attack or eat them.
Two crayfish in one tank often leads to fighting unless the tank is very large.
✅ Do’s
Provide hiding places, especially during molting.
Use a tight lid – crayfish are climbers and escape easily.
Offer calcium-rich foods to support shell growth.
❌ Don’ts
Don’t keep with small or slow community fish.
Don’t overcrowd with multiple crayfish.
Don’t expect delicate plants to survive – they dig and uproot them.
⭐ Quick Tips
Hardy and closest to the natural wild crayfish look.
Less colorful than fancy morphs (blue, ghost, red) but still attractive for natural aquariums.
Best for species-only setups or tanks with robust, fast tankmates.
