Common name: Pineapplefish

General Information

The Pineapplefish, scientifically known as Cleidopus gloriamaris, is a fascinating and unique addition to the marine aquarium trade. Its name is derived from its striking appearance, resembling a pineapple with its golden-yellow body covered in a lattice of black scales. This nocturnal species is native to the coastal waters of Australia, where it inhabits rocky reefs and caves at depths ranging from 6 to 200 meters. Pineapplefish are known for their bioluminescent organs located near their lower jaw, which they use to navigate and hunt in dimly lit environments.

While not as commonly seen in home aquariums as other marine fish, the Pineapplefish is highly sought after by advanced aquarists due to its unique appearance and intriguing behavior. Its slow, deliberate movements and ability to emit light make it a captivating species to observe.

Care

Pineapplefish require a well-established aquarium with plenty of hiding spots, such as caves and overhangs, to mimic their natural habitat. They are best suited for dimly lit tanks, as bright lighting can cause stress. A sandy substrate and live rock structures are ideal for creating a comfortable environment. Stable water parameters and excellent filtration are essential for their health, as they are sensitive to poor water quality.

Due to their nocturnal nature, Pineapplefish are most active during the evening and night. Providing a moonlight or dim blue lighting during these hours can encourage natural behaviors and make them more visible to their owners.

Diet and Feeding

In the wild, Pineapplefish primarily feed on small crustaceans and zooplankton. In captivity, they can be fed a diet of live or frozen foods such as mysis shrimp, brine shrimp, and finely chopped seafood. They may be slow to adapt to prepared foods, so patience is required when introducing new items to their diet. Feeding them during the evening or night, when they are most active, will yield the best results.

Behavior and Compatibility

Pineapplefish are peaceful and reclusive, making them suitable for community tanks with other non-aggressive species. They are not territorial and generally ignore other tank inhabitants. However, they may outcompete slower or smaller fish for food due to their deliberate feeding habits.

These fish are best kept in pairs or small groups, as they exhibit social behaviors in the wild. Keeping multiple individuals can also reduce stress and encourage natural interactions.

Health and Common Issues

Pineapplefish can live for over a decade in captivity with proper care. When selecting a specimen, look for individuals with intact scales, clear eyes, and active behavior. Avoid fish that appear lethargic or have damaged fins or scales.

Maintaining stable water parameters and providing a stress-free environment are key to preventing health issues. Pineapplefish are susceptible to common marine diseases such as ich and bacterial infections. Quarantining new additions and maintaining excellent water quality can help minimize risks.

Habitat

The Pineapplefish is endemic to the coastal waters of Australia, particularly along the eastern and southern coasts. It is commonly found in rocky reefs, caves, and ledges, where it seeks shelter during the day and emerges at night to feed. This species thrives in cooler, temperate waters with moderate to low flow.