Species description

Care, breeding and tankmates

Fish profile

Temperament

Semi-aggressive

The Tomato Clownfish is a territorial and semi-aggressive species, especially as it reaches maturity and establishes a home site. Females are particularly dominant and will aggressively defend their chosen anemone or territory from any intruders, including hands during maintenance. Due to this behavior, they should not be housed with very passive fish or other clownfish species in smaller tanks.

Diet

Omnivore

In the wild, Tomato Clownfish feed on zooplankton, algae, and small benthic invertebrates. In the home aquarium, they are opportunistic omnivores that readily accept a wide variety of foods. A balanced diet should include high-quality marine flakes or pellets, supplemented with frozen foods like mysis shrimp, brine shrimp, and chopped seafood, as well as spirulina or herbivore preparations.

Life expectancy

10-18 years

In a well-maintained captive environment, the Tomato Clownfish can enjoy a surprisingly long lifespan, typically living between 10 and 15 years, with some specimens reaching up to 18 years. Achieving this longevity requires stable water parameters, a balanced diet, and a stress-free environment. Regular maintenance and selecting healthy, captive-bred specimens will also maximize their chances of a long life.

Sex ratio

ONE_TO_ONE

Tomato Clownfish exhibit protandrous hermaphroditism, meaning all individuals are born male and the dominant member of a pair transitions into a female. For stocking in home aquariums, they are best kept as a single specimen or a matched pair (1:1 ratio) consisting of one large female and one smaller male. Introducing multiple Tomato Clownfish into the same tank, especially without a large volume, will lead to intense conspecific aggression.

Feeding frequency

Twice daily

For optimal health and vitality, Tomato Clownfish should be fed small amounts once or twice daily. Young, growing specimens benefit from more frequent feedings, up to three times a day, to support their rapid development. Care should be taken to offer only what they can consume within a couple of minutes to prevent excess nutrients from polluting the water.

Bioload

Medium

The Tomato Clownfish has a moderate biological impact on the aquarium compared to smaller damselfish or nano reef species. Due to its potential size of up to 5.5 inches and active feeding habits, a robust filtration system is necessary to maintain low nitrate and phosphate levels. Regular water changes and a protein skimmer are highly recommended, especially if kept in a smaller aquarium of around 30 gallons.

Flow

Moderate

Tomato Clownfish prefer moderate water flow within the aquarium, which mimics their natural reef environments. While they are capable swimmers, they can be stressed by excessively strong currents that make it difficult for them to hover near their host site. Providing areas of low to moderate flow, especially around their chosen anemone or shelter, allows them to rest and swim comfortably.

Jump risk

No

Reproduction

Oviparous

Breeding Tomato Clownfish in captivity is highly achievable and follows a standard pattern for clownfish species. Once a compatible pair is formed, the female will lay hundreds of adhesive eggs on a flat rock near their host anemone, which the male will then guard and fan until hatching, typically within 7 to 10 days. Successfully raising the fry requires a separate rearing tank, where they must be fed live rotifers followed by baby brine shrimp as they mature.

Compatibility & tankmates

Aggressive

Tomato Clownfish are compatible with a variety of robust reef fish such as larger damsels, tangs, angelfish, and hawkfish. However, their territorial nature makes them unsuitable for sharing small tanks with peaceful, shy species like firefish, small gobies, or other clownfish species. If housed with an anemone like Entacmaea quadricolor, they will aggressively defend it, so careful monitoring of tankmate proximity is required.

Tank level

Middle/Bottom

In the aquarium, Tomato Clownfish will establish a territory and spend the majority of their time in the lower-to-middle zones of the water column. They rarely venture far from their host anemone, coral, or chosen rocky cave, which acts as their home base. While they will swim to the surface during feeding times, their daily activity is concentrated near their selected shelter.