Cave Basslet (Liopropoma mowbrayi)

The Cave Basslet is a beautiful, secretive reef fish. Native to deeper Caribbean waters, this species naturally spends much of its time around caves, ledges, and rocky crevices, where it can quickly retreat when it feels threatened.

With its rich red-orange coloration and contrasting markings, the Cave Basslet is an excellent choice for reef keepers looking for something a little different from the more commonly seen basslets. It tends to be peaceful and spends much of its time exploring rockwork and watching the aquarium from the safety of its favourite hiding spots.

Care & Temperament

The Cave Basslet is generally peaceful and does best in a mature aquarium with plenty of established rockwork, caves, and shaded areas. It may be shy when first introduced but will usually become more comfortable once it has established a territory.

• Provide plenty of caves and crevices for hiding.

• A secure lid is recommended, as basslets can jump when startled.

• Best kept with peaceful to moderately peaceful tankmates.

• May become territorial toward other basslets or similarly shaped fish.

• Once settled, it will often become more confident and visible around its preferred rockwork.

Diet

The Cave Basslet is a carnivore and should be offered a varied diet of meaty marine foods. Feed small portions regularly rather than relying on one large feeding.

Good food choices include:

• Mysis shrimp

• Enriched brine shrimp

• Chopped marine seafood

• Quality frozen carnivore foods

• Small sinking pellets

Tankmates & Compatibility

The Cave Basslet is generally reef-safe and can work well in a community reef aquarium. Avoid housing it with overly aggressive fish that may keep it hidden or outcompete it for food.

Good tankmates: Peaceful wrasses, gobies, blennies, cardinalfish, smaller tangs, clownfish, and other appropriately sized peaceful reef fish.

Use caution with: Other basslets, dottybacks, or similarly territorial fish, especially in smaller aquariums.

Reef Safe

Yes – generally reef safe.

The Cave Basslet does not typically bother corals or ornamental invertebrates, making it a good choice for a properly planned reef aquarium. As with any carnivorous fish, very small ornamental shrimp may require additional consideration.

Suggested Parameters

• Temperature: 24–27°C (75–81°F)

• Salinity: 1.023–1.026 specific gravity

• pH: 8.1–8.4

• Aquarium: Mature marine or reef aquarium

• Minimum tank size: 30 gallons recommended

• Aquascape: Plenty of caves, overhangs, and established live rock

What You Are Exactly Buying

You are purchasing one Cave Basslet (Liopropoma mowbrayi). Each fish is individually selected and conditioned before being offered for sale at Little Shop of Corals.

Health & Acclimation Notes

As with all of our livestock, we recommend taking your time when introducing a new fish to your aquarium. Allow the Cave Basslet to acclimate gradually and provide plenty of hiding places immediately after introduction.

It is completely normal for a newly introduced Cave Basslet to spend the first few days staying hidden. Once it feels secure and becomes familiar with its surroundings, you can expect it to become more confident and establish a preferred cave or area of the rockwork.

Why We Love It

• Beautiful coloration that stands out against reef rock.

• Naturally interesting cave-dwelling behaviour.

• Peaceful enough for many community reef aquariums.

• A less commonly seen basslet that adds something different to the collection.

• Its secretive personality makes finding it around the reef part of the fun.