Premnas biaculeatus 6-8 cm

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Premnas biaculeatus – Tomato Clownfish for Reef Aquarium

Premnas biaculeatus, often called the tomato clownfish, is the largest representative of clownfish. Its round, stocky, and robust body, with shades ranging from red to dark brown depending on the individual, makes it an impressive and charismatic fish in a reef aquarium.

Measuring up to 14 cm when fully grown, this fish is particularly appreciated for its vitality, longevity, and its symbiotic relationship with the anemone Entacmaea quadricolor, in which it finds refuge. Its lively and territorial behavior requires careful consideration of the tank composition, especially if you wish to introduce other clownfish.

Behavior and Compatibility

Premnas biaculeatus can be kept alone, in pairs, or in a group formed from the start. Being territorial, it can be aggressive towards other species or clownfish introduced after it. It strongly bonds with its host anemone and may vigorously defend its territory around it.

Maintenance Conditions

• Minimum recommended volume: 150 liters for a pair, more if kept in a group
• Temperature: 24°C to 27°C
• pH: 8.1 to 8.4
• Decor: the presence of an Entacmaea quadricolor anemone is highly recommended
• Water flow: moderate to strong

Diet

Omnivorous, the tomato clownfish accepts:

• Frozen artemia, mysis, and plankton
• Marine pellets rich in protein
• Vegetable supplements (dried seaweed, spirulina)

A varied diet helps to enhance its colors and resistance.

Why Choose Premnas biaculeatus?

• The largest of the clownfish, up to 14 cm
• Intense colors and massive silhouette
• Strongly attached to its symbiotic anemone
• Easy to feed and robust in an aquarium
• Compatible with medium to large-sized reef aquariums

Premnas biaculeatus is an ideal choice for aquarists wishing to introduce a dominant, hardy, and spectacular clownfish. Its behavior with the Entacmaea quadricolor anemone makes it an iconic duo of coral reefs.