ZEBRA DANIO

■ Scientific name: Danio rerio

■ Pronunciation: Dan-ee-oh rear-ee-oh

■ Size: To 5cm

■ Origin: India and Pakistan, some populations in Bhutan, Bangladesh and Nepal

■ Habitat: Pools and rice paddies, sometimes slow streams

■ Tank size: 80x30x30cm

■ Water requirements: Acidic to alkaline water; 6.0-7.8pH, 4-18°H

■ Temperature: 18-24°C

■ Temperament: Peaceful community species, sometimes territorial with its own

■ Feeding: Wholly unfussy, offer flakes, pellets, live and frozen Daphnia, bloodworm

■ Availability and cost: Stupendously common, with prices from around £1.50