Gibel carp

Quick facts

Adult size

45 cm, 2000 g typical harvest weight

Days to harvest

365 to 730 days from fingerling

Lifespan (max)

up to 12 years

Diet

omnivore

Temperature class

warm-water

Difficulty

beginner

Water parameters

Temperature range

0–32°C (optimum 22°C)

pH

6 to 9

Hardness

3 to 30 dGH

Minimum tank

500 L per individual at harvest size

Feed and growth

Feed protein

28% target

Daily feed (warm water)

1.60% of body weight per day

Daily feed (cool water)

0.50% of body weight per day

Max stocking density

50 g per litre of system water

A 2000g adult eats about 32.0 g of feed per day at optimum temperature. For a roster of 10 fish at adult size, that's around 320 g of feed daily.

Legality

Aquaculture and possession rules vary by jurisdiction and change over time. This table reflects regulations as of the verified date on each row. Verify with your local fisheries or wildlife authority before stocking.

Jurisdictions not listed here default to "check local regulations". A non-listing is not a green light; rules in your specific county or municipality may apply.

Habitat and origin

A hybrid between crucian carp (Carassius carassius) and goldfish (Carassius auratus), produced intentionally in Chinese and Eastern European aquaculture to combine the cold tolerance and disease resistance of crucian carp with the faster growth of goldfish. Both parent species are native to Eurasia. The hybrid occurs naturally where the parent species' ranges overlap but is also produced deliberately in hatcheries. Adults reach 0.5–1.5 kg in culture, with a deep body shape and variable coloring (typically olive to bronze, occasionally with gold patches). The hybrid is fertile, which is unusual for fish hybrids, and can reproduce in culture ponds. Used as a food fish in China and parts of Eastern Europe, where it fills a market niche between common carp and crucian carp. Not widely known or used outside these regions.

Climate and outdoor ponds

Climate classification

temperate (handles seasonal swings)

Outdoor pond zones (USDA)

3 to 11 (winter low around -40°C or warmer)

Heating in a temperate climate

Not required (handles seasonal cool periods)

Cooling in a temperate climate

Not required

Zone bounds reflect year-round outdoor pond viability with no active heating. Anywhere outside the bounded zone, the species can still be kept in an indoor heated tank or a seasonally-managed system. Verify your specific microclimate, as a sheltered yard zone can run a half-zone warmer than the regional rating.

Care notes

A niche aquaculture species primarily relevant in China and Eastern European markets. The hybrid combines the cold tolerance of crucian carp (surviving near-freezing water and low oxygen) with moderately faster growth than pure crucian carp. Temperature range: 2–32°C, with growth at temperatures as low as 8–10°C, making it viable in climates too cold for tilapia or even common carp. Growth: 300–800 g in 12-18 months on commercial carp pellet (28-32% protein). FCR is approximately 1.8-2.5. Stocking density: 15-30 g/L. The hybrid tolerates poor water quality (low oxygen, high turbidity, wide pH range) similar to both parent species. For aquaponics, the hybrid is most relevant in cold-climate regions where other food fish are unavailable or too sensitive. The main limitation is market acceptance: in Western countries, the fish is unknown and unmarketable. In Chinese and Eastern European markets, it sells readily. Fingerlings are available from specialized hatcheries in China and Eastern Europe. Regulatory status is generally unproblematic; neither parent species is typically restricted in their native range. Not recommended for regions where either parent species would be considered invasive.

Further reading

• Aquaponics water chemistry: balancing pH for fish and plants
• Fish for aquaponics: tilapia vs everything else