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Picasso Triggerfish© Rickard Zerpe / CC BY 2.0

Picasso Triggerfish

The Picasso Triggerfish gets its name from the bold, almost abstract-art pattern painted across its body. It's a hardy fish that takes readily to aquarium feeding, making it a popular pick even for beginner marine aquarists. As it matures, though, it can reach about 30 cm and grows increasingly territorial, so tank layout and tankmate choices deserve real thought. It also has a taste for shellfish and shrimp, which rules out life in a reef tank alongside corals and invertebrates. With its striking looks and confident presence, it's a fish that rewards the extra planning.

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About Picasso Triggerfish

The Picasso Triggerfish stands out with its bold, painterly pattern. Hardy and easy to feed, it grows to about 30 cm and becomes territorial, and its taste for shellfish makes it unsuitable for reef tanks.

7 things to know before welcoming a Picasso Triggerfish

  1. 1Grows to 30 cm

    This fish can grow to about 30 cm, so plan tank size around its adult size, not just how it looks when small. Growth rates vary between individuals, but it's wise to think ahead about upgrading to a larger tank.

  2. 2Not reef-tank safe

    Because it preys on shellfish and shrimp, it isn't suitable for reef tanks housing corals or invertebrates. A fish-only setup is the basic approach for this species.

  3. 3Strong territorial streak

    Territorial behavior and a feistier temperament tend to develop as this fish matures. If keeping tankmates, provide multiple hiding spots and plan the layout with that behavior in mind.

  4. 4Hardy and easy to keep

    It's a hardy species that takes readily to feeding, generally considered suitable for beginners. It adapts well to aquarium conditions, making it a relatively manageable marine fish.

  5. 5A jaw built for hard food

    It has powerful jaws and teeth strong enough to crush shells whole. Including shell-on shrimp or shellfish in its diet suits this natural feeding style.

  6. 6Tends to dig in the sand

    This fish likes to dig through the substrate as it swims about. When arranging rockwork, secure it firmly so it won't collapse if the sand shifts underneath.

  7. 7Choose tankmates carefully

    Small fish and crustaceans risk being preyed on or attacked, so they're poor tankmate choices. Consider pairing it with similarly sized, equally assertive fish instead.

Frequently asked questions about Picasso Triggerfish

Q.Can it be kept in a reef tank?
A.It preys on shellfish and shrimp, so it isn't suitable for reef tanks with corals or invertebrates. A fish-only tank is the recommended setup.
Q.Is it easy to keep for beginners?
A.It's hardy and feeds readily, and is generally considered suitable for beginners. That said, it grows up to about 30 cm, so plan your tank with its adult size in mind.
Q.Can it be kept with other fish?
A.It's territorial and can become more aggressive as it matures, so caution is needed. Small fish and crustaceans are likely to be preyed on, while similarly sized, equally assertive fish tend to be better matches.
Q.How large does it grow?
A.It can grow to about 30 cm at maturity. Prepare a tank sized for its adult growth, not just its size when acquired.
Q.Is this species subject to CITES?
A.The Picasso Triggerfish is not subject to CITES.

Useful tools for Picasso Triggerfish care

💧Aquarium Volume CalculatorCalculate water volume, weight, and heater wattage from tank dimensions🧪Water Quality CheckerFind compatible fish, shrimp, plants & corals based on pH, temperature & hardness🍽️Feeding GuideCheck feeding frequency, portion sizes & supplements by species and growth stage🤝Compatibility CheckerCheck compatibility between two species on a 5-level scale📊Fish Compatibility MatrixCheck fish compatibility at a glance with our matrix chart🔄Nitrogen Cycle GuideAuto-calculate bacteria colonization timeline for new tank cycling🗓️Seasonal Care CalendarMonthly care events and seasonal management tips at a glance🚿Water Change CalculatorAuto-calculate optimal water change frequency and volume by tank size and fish count🐠Stocking CalculatorCalculate max fish capacity for your tank size with overstocking alerts🏞️Tank Layout PlannerGet substrate, plant & hardscape suggestions based on tank size and style🧮Care Cost SimulatorEstimate initial, monthly & annual costs by category, care level and quantity⚖️Species Comparison ToolCompare two species side by side: care difficulty, size, lifespan & temperature🎯Pet Match DiagnosticAnswer 7 questions to find your top 3 perfect pets🚚Transport Safety CheckerCheck transport safety score and precautions by category, season, method and distance⏱️Quarantine & Acclimation TimerManage quarantine periods and acclimation steps with countdown timers. Includes recommended durations by species

Learn more about Picasso Triggerfish in the encyclopedia

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Care difficulty, lifespan, size and diet — all basics covered.

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