Tomato Clownfish

Category: Aquatic Species · Updated: August 5, 2026

1 Tomato Clownfish Overview

The Tomato Clownfish is a common clownfish variety; the hero ‘Nemo’ in Finding Nemo is this species. Because it is smaller than other clownfish, a tank of at least 90 liters is recommended.

English name: Thielle’s Anemonefish

Type: Clownfish, tropical marine fish

Origin: Philippines

Breeding: Egg-laying (oviparous)

Water quality: pH 8.1–8.4

Care level: Easy

Suitable temperature: 24–27°C

2 Appearance

The Tomato Clownfish is smaller than other clownfish, reaching only 6.5 cm as an adult, so a tank above 90 liters is recommended. It is a common clownfish; what are its features?

The Tomato Clownfish has a dark red body with yellow stripes, very beautiful. As a juvenile it has white stripes that turn yellow when adult. The body is orange-red with a white patch behind the head and a white line along the back to the tail. It can breed in the aquarium; if two clownfish always stay together they are likely a pair, the female being the larger.

3 Habitat

Because it is smaller than other clownfish, adults about 6.5 cm, a smaller tank works; a tank above 90 liters is recommended.

Best to provide an anemone such as the bubble-tip anemone. If threatened it may spit sand at viewers for protection. Introducing several at once reduces mutual aggression. It can breed in the aquarium; if two always stay together they are likely a pair, the female the larger. They lay eggs near the anemone on a flat surface and guard them from other fish.

4 Feeding

Keeping the Tomato Clownfish requires stable water and scientific feeding. Because it prefers animal food, keep nutrition balanced and not too one-sided.

Fry are better fed rotifers than artemia. Adults eat various animal foods such as chopped shrimp.