Lennard’s Wrasse Anampses lennardi is a rare blue and yellow wrasse prized by advanced marine aquarists for its distinctive coloration, cool-water tolerance, and natural sand-burrowing behavior that separates it from typical reef species. Endemic to the cooler coastal waters of Western Australia, this wrasse is collected in limited numbers and is best suited for established, well-planned systems where stability and space are priorities.

Aquarists researching whether Lennard’s Wrasse is reef safe, how large it grows, or what tank size is required consistently find that long-term success depends on preparation rather than compromise. When provided with a deep sand bed, cool stable temperatures, and a calm environment, this species acclimates predictably and displays natural behavior. Limited availability and expert-level requirements make it a deliberate acquisition for experienced keepers rather than an impulse addition.

Appearance

Lennard’s Wrasse undergoes dramatic visual changes as it matures. Juveniles display darker coloration with fine striping, while females develop bright blue and yellow horizontal striping across a lighter body. Terminal males lose striping entirely, transitioning to a solid green base with iridescent blue highlights, making adult males visually distinct from other Anampses species.

Care & Requirements

This species requires a mature aquarium with a fine sand bed at least 2–3 inches deep to support natural burrowing behavior used for sleep and stress reduction. Without adequate sand depth, individuals often remain hidden or fail to thrive.

Water temperature is a defining requirement. Lennard’s Wrasse originates from temperate Australian waters and performs best between 65 and 72°F. Consistent temperature control, strong filtration, and high oxygenation are essential. A secure lid is recommended, as startled individuals may jump.

Feeding should focus on small, meaty foods such as mysis shrimp, finely chopped seafood, and high-quality frozen marine diets offered multiple times daily. Newly imported specimens may be selective feeders, so patience during acclimation is critical.

Is Lennard’s Wrasse difficult to keep?
Yes. It is considered expert-level due to its temperature requirements, feeding sensitivity, and reliance on a deep sand bed.

Does Lennard’s Wrasse need sand?
Yes. A deep sand bed is required for natural behavior and long-term health.

What temperature range is required?
A stable range of 65–72°F is strongly recommended.

Tank Mates & Compatibility

Lennard’s Wrasse is generally peaceful and does best with calm, similarly sized fish. Suitable tank mates include larger peaceful wrasses, tangs, rabbitfish, and other non-aggressive species that tolerate cooler water conditions.

Avoid aggressive wrasses, highly territorial fish, or fast, competitive feeders that may outcompete it during feeding. Small ornamental shrimp and micro-crustaceans may be consumed due to natural foraging behavior.

Is Lennard’s Wrasse reef safe?
It is coral safe but may prey on small invertebrates.

Can it be kept with other wrasses?
Yes, with careful selection of peaceful species.

Is it aggressive toward tank mates?
No. Stress is a greater concern than aggression.

Aquaculture/Availability

Currently, captive-bred specimens are not widely available. Most Lennard’s Wrasse offered in the trade are responsibly collected wild specimens from Western Australia. Strict collection regulations and geographic limitations contribute to its rarity and inconsistent availability.

Because imports are infrequent, availability is often seasonal and limited. Planning system readiness in advance is strongly recommended when this species becomes available.

Is Lennard’s Wrasse captive bred?
At this time, captive-bred specimens are not commonly available.

Why is Lennard’s Wrasse rare?
Its limited natural range and regulated collection restrict supply.

How often is it available for purchase?
Availability is sporadic and dependent on collection conditions.

FAQ

How big does Lennard’s Wrasse get in captivity?
This species can reach up to 12 inches in length. Growth is gradual and depends on tank size, diet, and long-term stability.

What tank size is best for an adult Lennard’s Wrasse?
While juveniles may be housed in 120-gallon aquariums, adults benefit from 180–250 gallons to allow proper swimming space and reduced stress.

Does Lennard’s Wrasse change color over time?
Yes. Coloration changes significantly with maturity and sex, especially as individuals transition into terminal males.

What foods are best for Lennard’s Wrasse?
A varied carnivorous diet including mysis shrimp, chopped seafood, and frozen marine blends offered multiple times daily is recommended.

Can Lennard’s Wrasse live in a tropical reef tank?
Standard tropical temperatures are not ideal. Cooler, temperate-leaning systems are required for long-term success.

Is a mature aquarium required before adding this species?
Yes. Established systems with stable parameters greatly improve acclimation and survival outcomes.

Expert Only: Items designated as expert only require special care such as a species specific environment, special diet or care, and an expert level, experienced aquarist. Not for beginners. Expert Only items qualify for our live arrival guarantee only, and are exempt from our extended 8 day guarantee.