Griffis Angelfish - Marshall Is.

The Griffis Angelfish (Apolemichthys griffisi) is an uncommon and sophisticated marine angelfish distinguished by its dramatic black, white, gray, and gold patterning. Adults develop a pale gray body accented with small golden spots, a bold black eye stripe and forehead marking, a broad dark diagonal band across the rear body, and a contrasting white band extending along the upper flank toward the tail. Its unusual coloration gives this saltwater fish a refined appearance that stands apart from the brighter yellows and blues typical of many large angelfish.

Native to the Pacific Ocean from the Indo-Malayan region eastward to the Line Islands, the Griffis Angelfish inhabits outer reef slopes and steep drop-offs. It has been recorded from approximately 10 to 110 meters, although it is most commonly associated with deeper reef habitat around 40–60 meters. Wild fish may occur singly, in pairs, or in small groups and feed primarily on sponges and tunicates.

Reaching up to approximately 12 inches in total length, A. griffisi requires a large, mature marine aquarium with extensive rockwork and plenty of swimming room. Once acclimated it can become a commanding centerpiece in a fish-only aquarium or carefully selected reef aquarium, but like other large Apolemichthys angels, it should be considered reef safe with caution because sessile invertebrates may be sampled.

Quick Care Guide

Care Level: Moderate
Minimum Tank Size: 180 gallons
Temperament: Semi-aggressive
Diet: Omnivore / Spongivore
Reef Safe: With Caution
Region: Pacific Ocean – Indo-Malayan region eastward to the Line Islands
Scientific Name: Apolemichthys griffisi

FishBase records a maximum adult length of 30 cm, or approximately 12 inches. While some aquarium references list smaller minimum aquariums, a 180-gallon system provides a more appropriate long-term footprint for the species at its documented maximum adult size.

Tank Requirements

Provide a mature aquarium with extensive live rock arranged into caves, rocky ledges, overhangs, cracks, and crevices while preserving substantial open swimming space. This arrangement reflects the outer reef slopes and drop-offs the species occupies naturally and gives a newly introduced fish secure areas to retreat while it becomes established.

Established rockwork is particularly valuable because it provides natural grazing surfaces in addition to shelter. Avoid creating an overly dense aquascape that restricts movement; an adult Griffis Angelfish is a deep-bodied, substantial fish that needs room to cruise comfortably.

Strong biological filtration, good oxygenation, and consistent water quality are recommended. No specialized substrate is required, so sand or a conventional marine substrate can be used. Because this species naturally occurs on deeper reef slopes, a quieter acclimation period with plenty of shaded shelter can be beneficial when first introduced. Its documented depth range extends from about 10 to 110 meters.

Diet and Feeding

The natural diet of the Griffis Angelfish consists primarily of sponges and tunicates, making nutrition an important part of successful long-term care.

Offer a varied diet that includes high-quality frozen angelfish preparations containing sponge, mysis shrimp, enriched brine shrimp, finely chopped marine seafood, marine algae, Spirulina-based foods, and quality marine pellets. Sponge-containing preparations should remain a regular part of the feeding program rather than an occasional supplement. Quality Marine likewise recommends a combination of meaty foods, algae-based foods, and angelfish formulations containing sponge for Apolemichthys species.

Feed two to three smaller meals daily when practical. Mature live rock provides additional grazing opportunities between feedings and can help a newly introduced specimen transition to captive foods.

Temperament and Tankmates

The Griffis Angelfish is best considered semi-aggressive. It may initially be reserved around new surroundings, but established individuals can become territorial, particularly toward other angelfish with a similar body shape.

Suitable tankmates include tangs, rabbitfish, larger wrasses, clownfish, anthias, and other medium-to-large marine community fish that are confident without being excessively aggressive. Very timid species may be intimidated by a mature angelfish, particularly if aquarium space is limited.

A single Griffis Angelfish is the safest arrangement for most home aquariums. Although the species occurs naturally in pairs and small groups, keeping multiple large angelfish requires substantially more space and careful planning. Similar Apolemichthys species and other large angels should be introduced with particular caution.

Reef Compatibility

The Griffis Angelfish is reef safe with caution. Some individuals may coexist successfully with corals, and it is sometimes regarded as one of the more reef-compatible large angelfish. However, complete reef safety should not be assumed.

Sponges and tunicates are natural prey, and Apolemichthys angelfish may also investigate or nip other sessile invertebrates. Fleshy corals, zoanthids, clam mantles, and similar stationary reef animals should therefore be monitored carefully. Quality Marine specifically cautions that members of the genus may pick at sponges, tunicates, benthic organisms, and sessile invertebrates.

For aquarists maintaining valuable coral, clam, sponge, or tunicate collections, there is always some individual behavioral risk. A fish-only or FOWLR aquarium provides the most predictable environment.

Water Parameters

Temperature: 72–78°F
Specific Gravity: 1.024–1.026
pH: 8.1–8.4
Alkalinity: 8–12 dKH

Aquarium husbandry references recommend temperatures in the low-to-upper 70s for this species. Maintain stable salinity, temperature, pH, and overall water quality rather than continually adjusting parameters to chase an exact number.

Common Considerations

• Large adult size: FishBase records a maximum length of approximately 12 inches, so long-term housing requires substantial swimming space.

• Sponge-rich diet: Sponge and tunicate material forms an important part of the natural diet, making appropriate angelfish preparations valuable for long-term nutrition.

• Reef safe with caution: Individual fish may leave many corals alone, but sponges, tunicates, corals, clams, and other sessile invertebrates can potentially be sampled.

• Territorial with other angelfish: Established specimens may challenge similarly shaped angels, particularly when aquarium space is limited.

• Mature rockwork is important: Caves and crevices provide security while established reef surfaces offer natural grazing opportunities.