All fish / Cyprinidae

Yellowtail rasbora

Rasbora tornieri

Also known as yellow tail rasbora, tornier's rasbora, yellowtail slim rasbora, tornieri rasbora, seluang, ラスボラ・トルニエリ, wader, 黄尾波鱼

A slim, silvery rasbora with a dark lateral stripe running to the tail and a yellow to orange tinge on the caudal fin lobes. It is kept for its lively schooling behaviour and hardiness, making it a good choice for larger community tanks with open swimming space.

Care at a glance

Care level

Easy

Temperament

Peaceful

Adult size

10 cm

Temperature

22 to 27 °C

pH

6 to 7.5

Smallest tank

150 litres

Keep as

Shoal of 8 or more

Diet

Omnivore: quality flakes and small pellets, plus frozen or live bloodworm, daphnia and brine shrimp

Swims

Middle of the tank

Lifespan

5 to 8 years

Water

Freshwater

Wild range

Southeast Asia: Thailand, Malay Peninsula, Sumatra and Borneo

Breeding

An egg scatterer that spawns among plants and gives no parental care, and the adults will eat the eggs. It is rarely bred deliberately in home tanks, though conditioned groups may spawn in a separate tank with fine-leaved plants or a mesh base.

Good to know

It grows larger than most rasboras, around 10 cm or more, so needs a long tank and a tight lid as it can jump. It is easily confused with similar striped species such as Rasbora daniconius and Rasbora paviana.