Dispar Anthias - Male

The Male Dispar Anthias is a striking saltwater fish prized for its vivid coloration and graceful, active swimming style. Mature males develop rich pink, orange, and lavender tones accented by a brilliant red dorsal fin and elongated pelvic fins, giving them a noticeably more dramatic appearance than females. Their constant midwater activity adds color and movement to established reef aquariums and peaceful fish-only aquariums.

Native to tropical reefs from the eastern Indian Ocean through much of the western and central Pacific, this marine aquarium fish naturally gathers above outer reef slopes where currents deliver a steady supply of zooplankton. Dispar Anthias are social, active planktivores that perform best when provided with excellent water quality, frequent feeding, ample swimming room, and secure retreat areas. A male is especially well suited to a properly sized harem with several females.

Quick Care Guide

Care Level: Moderate
Minimum Tank Size: 75 gallons
Temperament: Peaceful
Diet: Planktivore
Reef Safe: Yes
Region: Eastern Indian Ocean, Western & Central Pacific
Scientific Name: Nemanthias dispar (syn. Pseudanthias dispar)

Tank Requirements

Provide a mature, well-established aquarium with generous open swimming space above and around substantial live rock. Caves, ledges, overhangs, and crevices give the fish secure places to retreat when startled or when settling in for the night.

Moderate to strong water movement is beneficial and helps replicate the current-swept reef slopes this species naturally inhabits. Good oxygenation and stable water quality are especially important for anthias.

A securely fitted mesh lid or aquarium cover is strongly recommended because Dispar Anthias may jump when frightened. When maintaining a male with several females, allow additional swimming space and hiding areas so subordinate fish can move away from dominant individuals.

Diet and Feeding

Dispar Anthias are primarily planktivores that naturally feed on small zooplankton carried through the water column. In captivity, offer a varied diet of appropriately sized foods such as mysis shrimp, enriched brine shrimp, copepods, finely chopped marine seafood, frozen plankton blends, and high-quality marine pellets or granules.

Multiple small feedings throughout the day are preferable to a single large feeding. Two to three feedings daily should be considered a practical minimum, with additional small meals beneficial when possible. Newly introduced specimens may respond particularly well to moving frozen or live foods before transitioning more completely to prepared diets.

Temperament and Tankmates

This is generally a peaceful marine fish that mixes well with other non-aggressive reef inhabitants. Suitable tankmates include peaceful wrasses, gobies, blennies, cardinalfish, clownfish, and other community-oriented species that will not continuously intimidate or outcompete it at feeding time.

Dispar Anthias naturally maintain a social hierarchy. A male is best kept as the only male of its species in most home aquariums and may be housed with several females when adequate space is available. Multiple males can become territorial toward one another, particularly in confined aquariums.

Avoid highly aggressive or excessively boisterous tankmates that may prevent the anthias from feeding comfortably.

Reef Compatibility

Reef Safe: Yes

The Dispar Anthias is an excellent choice for reef aquariums and does not normally damage corals, clams, ornamental shrimp, crabs, snails, or other typical reef invertebrates. Its plankton-feeding behavior keeps it primarily focused on food suspended in the water column rather than sessile reef organisms.

Its colorful appearance and tendency to remain visible above the rockwork make it particularly attractive in mixed reef and SPS-dominated displays.

Water Parameters

Temperature: 75–80°F
Specific Gravity: 1.024–1.026
pH: 8.1–8.4
Alkalinity: 8–12 dKH

Stable conditions, strong biological filtration, good oxygenation, and consistent water quality are more important than repeatedly adjusting the aquarium to target an exact number within these ranges.

Common Considerations

• Requires multiple small feedings each day due to its active planktivorous feeding behavior.

• A secure aquarium lid is strongly recommended because startled anthias may jump.

• Males may become aggressive toward other male Dispar Anthias, making one male with several females the preferred social arrangement.

• Provide both substantial open swimming space and plentiful rockwork for shelter.

• Newly introduced specimens may be shy or reluctant to feed and benefit from a peaceful, mature aquarium with limited competition at mealtime.