Black crappie
Pomoxis nigromaculatus
Also known asSpecs · Crappie
Water parameters
Minimum tank: 300 L per individual at harvest size.
Feed and growth
- Feed protein
- 40% target
- Daily feed (warm)
- 1.30% of body weight
- Daily feed (cool)
- 0.70% of body weight
- Max density
- 35 g per litre
A 400 g adult eats about 5.2 g of feed per day at optimum. 10 fish at adult size: ~52 g daily.
Legality
Rules vary by jurisdiction and change over time. Verify with your local fisheries or wildlife authority before stocking.
| Jurisdiction | Status | Notes |
|---|---|---|
| California | permit required | verified 2026-05-13 |
| New South Wales | prohibited | Non-native fish biosecurity restriction verified 2026-05-13 |
Unlisted jurisdictions default to "check local regulations".
Origin and habitat
Native to eastern North America, from the Great Lakes and St. Lawrence drainage south through the Mississippi basin to the Gulf states, and along the Atlantic coast from Virginia to Florida. The species (Pomoxis nigromaculatus) is one of the most popular sport and panfish in North America, found in lakes, reservoirs, and slow-moving rivers with clear to moderately clear water and abundant submerged structure (fallen timber, brush piles, weed beds). Adults typically reach 20–30 cm and 200–500 g in the wild. Black crappie are school-forming predators that feed primarily on small fish (shad, minnows) and aquatic invertebrates. The flesh is white, flaky, delicate, and mild-flavored, consistently rated among the best-tasting freshwater panfish in North America. Crappie fishing is enormously popular across the US South and Midwest.
Climate and outdoor ponds
- Climate
- temperate (handles seasonal swings)
- USDA zones
- 3–10 (winter low around -40°C or warmer)
- Heating needed
- no
- Cooling needed
- no
Care notes
A cool-water to warm-water panfish for aquaponics operators who prioritize flesh quality over production volume. Optimal growth temperature is 18–25°C, with a tolerated range of about 5–30°C. Growth is slow by aquaculture standards: 150–300 g harvest weight in 18-24 months. FCR on high-protein pellet (40-45%) is approximately 2.0-2.5, which is inefficient compared to catfish or tilapia. The slow growth and poor feed conversion make black crappie marginal for production-focused aquaponics, but the outstanding flesh quality fills a niche for personal consumption systems where eating quality is the priority. Crappie are predatory and must be trained to accept pellet feed as small fingerlings (under 5 cm); fish that grow past this stage on live food are nearly impossible to convert. Source feed-trained fingerlings from hatcheries that specialize in pellet-weaned stock. Stocking density should be low (5-10 g/L) because crappie are less tolerant of crowding than catfish or tilapia, and aggression increases at higher densities. Cannibalism between size classes is a persistent concern; grade frequently and separate fish by size. Legal in most US states without special permits. Fingerlings may be difficult to source commercially; state wildlife agencies sometimes have surplus stock from sport fish stocking programs.