Other Goldfish Names: Goldfish, Common Goldfish, Feeder Goldfish

Goldfish Scientific Name: Carassius auratus auratus

Common Goldfish (Carassius auratus auratus))

Temperature Range: 61°F-68°F
pH Range: 6.2-7.7
Hardness Range: 5-20°

Family: Cyprinidae

Species Type: Cyprinids

Goldfish Adult Size: 15 inches (cm)

Goldfish Life Expectancy: 20 years

Goldfish Habitat: Asian ponds, but now lives throughout the world in man made ponds.

Goldfish Minimum Tank Size: 40 gallons

Goldfish Temperament: Peaceful

Goldfish Diet & Nutrition: Omnivorous. Flake and pellet foods; also include some vegetable matter and live or frozen foods; fish may nibble at plants.

Goldfish Description: One of the most popular coldwater fish, the Goldfish is often mistreated, in the mistaken belief that it will live in any conditions. As with any other species, careful maintenance is needed for good health. Goldfish are notoriously filthy, producing much waste, and continually stir up the substrate in their never-ending search for food. A very efficient filtration system and regular water changes of 25 percent per week are essential in the confines of a tank. Do not crowd these fish in water that is depleted of oxygen or too warm, they may gasp at the surface for air.

Tank Mate Compatibility: Other goldfish or large coldwater species.

Goldfish Breeding & Spawning: Goldfish breed readily. In the spawning season, males develop tubercules (small white spots on the gill cover and head). At other times, and in common Goldfish with largely unaltered fins, the anal fin of the male is concave, while on the female it is convex. they spawn as waters warm. After courtship, a mature pair may produce over 1,000 eggs which hatch in about five days. The fry are easy to feed on small live foods.

Determining Goldfish Sex: Golds are difficult to sex. Although it *is* possible. The best and most accurate way, in my opinion, is the tubercules that develop on the gill plates of the mature male. They appear to be tiny white spots, you probably won't even notice them without close examination of the fish. Females also are usually a big larger fuller bodied. It is nearly impossible to sex a Goldfish accurately under the age of 1.5 - 2 years of age, even then it is quite a task.

Aquarium Region: Bottom of tank

Goldfish Diseases: None specific to species

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