Blue blanquillo
Malacanthus latovittatus
The Blue blanquillo exhibits a slender body and vibrant blue to greenish-blue coloration with distinctive yellow accents along its fins.
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About the Blue blanquillo
A long, slim tilefish with a bold black side stripe and a blue head that fades down the body. It hovers high above the reef and darts back to a sand-rubble burrow, often living as a monogamous pair; in tanks it is fast, jump-prone, and will eat small crustaceans and tiny fish.
Also known as
Quick Facts
Size
45 cm (18 inches)
Temperament
Semi-aggressive
Difficulty
Intermediate
Min Tank Size
200 gallons
Lifespan
8-15 years
Origin
Indo-Pacific
Diet
Carnivore - meaty marine foods (shrimp, clam, chopped fish); preys on crustaceans, worms, molluscs, and small fish
Water Parameters
22-28°C
8-8.5
Need a heater for this species?
This species needs 22-28°C in a 200 gallon tank. Use our heater calculator to find the right wattage.
Calculate heater sizeCare Notes
- Go big: a single Blue blanquillo needs at least 200 US gallons with lots of open water to cruise, plus a sand-and-rubble patch so it can dig a burrow.
- Use a tight-fitting lid and cover overflows and gaps; this fast fish is very jump-prone.
- Keep marine water at 22-28 C and pH 8.0-8.5.
- Feed a varied carnivore diet of meaty marine foods like shrimp, clam, and chopped fish; it naturally takes crustaceans, worms, molluscs, and small fish.
- Choose tankmates that are too big to be a snack and can handle a semi-aggressive, speedy neighbor; avoid tiny fish and ornamental shrimp or small crabs.
- They hover high above structure and bolt back to a burrow when startled, so leave plenty of open water column and a clear path to the burrow.
- In the wild they often live as monogamous pairs, but unless you have a confirmed pair, most aquarists keep just one per tank.
- Expect a lifespan around 8-15 years, so plan for a long-term commitment.
Compatibility
Good Tankmates
- Medium to large tangs (Zebrasoma, Acanthurus) that are not hyper-aggressive; plenty of swimming room
- Rabbitfish such as foxfaces (Siganus) - peaceful, similarly sized open-water grazers
- Large angelfish and butterflyfish that are non-predatory and not overly pugnacious
- Larger fairy/flasher wrasses and calm Halichoeres wrasses; avoid the most boisterous Thalassoma types
- Robust clownfish pairs (Amphiprion) - medium size, can hold their own without threatening it
- A bonded pair of Blue blanquillo, added together with multiple sand-rubble burrow sites
Avoid
- Ornamental shrimp and small crabs (cleaner, peppermint, sexy shrimp, tiny hermits) - will be hunted
- Very small or slender fish that fit in its mouth (nano gobies, firefish, juvenile chromis, tiny dartfish)
- Highly aggressive or predatory species (triggers, large groupers, eels, big Thalassoma wrasses, lionfish)
- Territorial damsels and dottybacks that harass midwater fish
The Blue blanquillo (Malacanthus latovittatus) is a long, slim Indo-Pacific tilefish with a blue head that fades down the body and a bold black stripe along the side. It spends much of its time hovering high above the reef, then darts back to a sand-rubble burrow when startled. In aquariums it is fast, jump-prone, and will eat small crustaceans and tiny fish. Expect an adult size up to 45 cm (18 inches) and a lifespan of about 8-15 years with steady care.
- Water type: marine
- Temperature: 22-28 C
- pH: 8.0-8.5
- Maximum size: 45 cm (18 inches)
- Minimum tank: 200 US gallons
- Temperament: semi-aggressive
- Care level: intermediate
Origin and natural habitat
Indo-Pacific. Blue blanquillos hover in the water column above reefs and open rubble zones, retreating to sand-rubble burrows for cover. They are often seen as monogamous pairs in the wild.
Aquarium setup and water conditions
A large, well-covered marine tank is mandatory. Provide at least 200 US gallons with long, unobstructed swimming space and vertical room, plus an area of sand with scattered small rubble so the fish can maintain a burrow. Keep a tight-fitting lid or mesh; this species is a strong jumper, especially when startled.
Maintain stable marine parameters within 22-28 C and pH 8.0-8.5. As a powerful swimmer, the Blue blanquillo benefits from open water and consistent, clean conditions.
Secure every gap in the cover. Blue blanquillos commonly jump when spooked or during lights-on/lights-off transitions.
Diet and feeding
Carnivorous. Offer varied meaty marine foods such as shrimp, clam, and chopped fish. In nature they prey on crustaceans, worms, molluscs, and small fish, and they will treat tiny ornamental crustaceans as food in the aquarium.
Plan your cleanup crew accordingly. Small shrimp and crabs are likely to be eaten.
Behaviour and tankmates
Semi-aggressive and very quick, this tilefish spends time in midwater and makes rapid dashes to its burrow. It is best combined with mid- to large-sized marine fishes that are not overly territorial. Avoid very small fishes and small crustaceans, which may be viewed as prey.
Blue blanquillos are often monogamous in the wild, but in home aquaria they are typically kept singly.
Common problems and how to avoid them
- Jumping losses: Use a tight, gap-free lid or mesh top.
- Stress from lack of cover: Provide a sand-and-rubble zone so the fish can maintain a burrow.
- Predation on small tankmates: Do not house with tiny fishes or ornamental crustaceans.
- Space constraints: This is a large, fast species; keep in 200+ gallons with open swimming room.
Similar Species
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