Discusディスカス
Symphysodon discusLC— Least Concern
The discus is a round, laterally flattened cichlid native to the Amazon River basin, prized in the aquarium hobby for its vivid color varieties and gentle, social temperament. Uniquely among most fish, discus fry feed on a nutrient-rich mucus called "discus milk" secreted from their parents' skin, and the species has become the centerpiece of a major breeding and show industry across Asia.
Discus (reference photo)
Species Data
- Classification
- Perciformes / Cichlidae Source
- Size
- Body length about 12–15 cm excluding the tail fin, maximum total length about 20 cm; some captive individuals reach 23 cm
- Weight
- About 150–250 g as an adult
- Lifespan
- Average about 10 years in captivity, up to about 15 years
- Diet
- Omnivore Omnivorous, eating small aquatic animals and plant and animal detritus (such as periphyton); during the flood season invertebrates can make up as much as 38% of stomach contents
- Distribution
- Native to the Amazon River basin, with different species occupying the eastern Amazon, western Amazon, and the Rio Negro and its tributaries. Source
- Sources
- ja.wikipedia.org en.wikipedia.org
Did You Know?
- For the first several weeks of life, fry feed exclusively on a mucus secretion called "discus milk" produced by their parents' skin, a behavior shared by more than 30 cichlid species but most famously associated with discus. Source
- Unusually among American cichlids, discus are highly social fish that typically form groups numbering in the dozens. Source
Where to See This Species
Operating facilities registered on this site: Japan 1
Aquamarine FukushimaFukushimaOpened in 2000
Conservation Story
Conservation Status
Least Concern (LC)
Sources
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FAQ
- What is "discus milk"?
- It is a nutrient-rich mucus secreted from the skin of adult discus that their fry feed on exclusively for the first few weeks of life, a parental care strategy shared by only a small number of cichlid species. Source
- How long do discus fish live in an aquarium?
- With good care, discus typically live around 10 years in captivity, and some individuals live as long as 15 years. Source
- How many operating facilities are registered here?
- Operating facilities registered on this site: Japan 1 Source
Books & gear
Source: ja.wikipedia.org en.wikipedia.org