The Rhinecanthus aculeatus, or Picasso Triggerfish, is a visually stunning species prized for its bold patterns and active nature. This small-sized triggerfish reaches up to 25 cm in length and is best suited to marine aquariums with a minimum volume of 120 litres (approximately 30 gallons).
Temperament and Compatibility: This species is known for its territorial and sometimes aggressive behaviour, especially towards smaller or more passive tankmates. It is recommended to keep them with robust, similarly sized fish and avoid housing with invertebrates due to their predatory tendencies.
Diet: Rhinecanthus aculeatus is carnivorous and thrives on a varied diet including meaty foods such as frozen or live crustaceans, molluscs, and specialised marine pellets. Feeding should be done 1-2 times daily to maintain optimal health.
Tank Setup and Care: Provide plenty of live rock for hiding and grazing, along with open swimming areas. Maintain stable water parameters with temperatures between 24-27°C, salinity at 1.020-1.025 SG, and moderate water flow. Lighting requirements are standard for marine fish and do not require specialised setups.
Reef Safety: With caution. While not reef safe due to their tendency to nip at corals and invertebrates, some experienced keepers have had success in well-established reef tanks with ample hiding spaces.
Overall, the Picasso Triggerfish is a captivating addition for marine fish enthusiasts prepared to meet its care demands and behavioural traits.
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