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InvertebrateeasyFreshwater

White River Crawfish

Procambarus acutus

AnimaliaArthropodaMalacostracaDecapodaCambaridae

📍 Southeastern United States (White River drainage, Arkansas and Missouri)

Ask Finn

The White River Crawfish is a medium-sized freshwater crayfish native to the White River drainage in the southern United States. Known for their pale coloration and hardy nature, they are popular in the aquarium hobby for their interesting behavior and relatively straightforward care requirements. These crawfish are opportunistic omnivores that will actively forage and burrow, making them engaging to observe.

Size4.5"
Min Tank20g
semi-aggressive
Zonebottom

Care Guide

Diet

Feed sinking pellets 2-3 times per week, supplemented with blanched vegetables and occasional protein sources like bloodworms or small shrimp. Provide calcium-rich foods (cuttlebone, calcium supplements) during and after molting to support shell hardening. Crawfish are opportunistic scavengers and will consume uneaten food and decaying plant matter.

Behavior

White River Crawfish are primarily nocturnal and spend much of the day hidden in burrows or under rockwork. They are territorial and will defend their space aggressively, particularly during molting when they are vulnerable. These are skilled escape artists—a tight-fitting lid is essential. They will consume soft plants and may prey on slow fish, shrimp, and snails; they are best kept alone or with hardy, fast-moving tankmates.

Breeding

Breeding in captivity is possible but challenging for hobbyists. Females produce eggs that are carried under the tail for several weeks before hatching into miniature crawfish. Successful breeding requires optimal water conditions, adequate food, and minimal disturbance. Fry are cannibalistic and difficult to raise without specialized care and separate rearing containers.

Common Diseases

Molting Dysfunction (Stuck Molt)

Symptoms

Crawfish unable to shed exoskeleton; lethargy; loss of appetite; visible cracks in shell without shedding

Treatment

Increase water hardness and calcium availability; provide cuttlebone or calcium supplements; maintain optimal temperature (18-22 C); ensure adequate humidity in burrow; do not disturb during molt attempt

Shell Rot (Bacterial Infection)

Symptoms

Soft spots or discoloration on shell; pitting or erosion of exoskeleton; foul odor; lethargy

Treatment

Perform 25-30% water changes; improve water quality and reduce ammonia/nitrite; increase calcium intake; isolate affected crawfish if possible; treat with antibacterial medication if severe

Parasitic Infection (Branchiobdella)

Symptoms

Visible worm-like parasites on gills or body; difficulty breathing; reduced activity; weight loss

Treatment

Quarantine affected crawfish; perform frequent water changes; treat with antiparasitic medication or salt baths (1-2 teaspoons per gallon for 10-15 minutes); improve tank hygiene and reduce stocking density

Copper Toxicity

Symptoms

Lethargy; loss of appetite; discolored or darkened shell; neurological symptoms; death

Treatment

Immediately perform large water changes (50%+) to dilute copper; check all medications and supplements for copper content; avoid copper-based treatments; use copper-free medications only; crawfish are highly sensitive to copper and cannot tolerate any measurable levels

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Quick Facts

diet
Omnivore; feeds on sinking pellets, blanched vegetables (zucchini, spinach), protein sources (bloodworms, shrimp), and calcium-rich foods for molting support
lifespan
3-5 years
max size
11 cm (4.3 in)
tank size
20 gallons minimum
temperament
semi-aggressive

Water it likes

ph
6.5-8.0
ammonia
0 ppm
nitrate
<20 ppm
hardness
6-15 dGH
temperature
61–75°F (16–24°C)

Stats

Community tips0
Kept by0 hobbyists