Care
The Bicolour Anthias is known from current-swept, deep coastal reefs and outer reef slopes, where it occurs in small aggregations amongst crevices and above coral outcrops, feeding on zooplankton in the water column. Male fish are characteristically territorial and form a harem with a large number of females. This is a great species for the reef tank, and easier to keep than many of its congeners. In the confines of the aquarium, it is best to keep either a solitary specimen, or else a group comprising of a single male and at least 8 females. Unfortunately, smaller groups will result in squabbles, where the weakest fish is likely to be picked on and prevented from feeding, eventually succumbing to being bullied by the others. These large shoals should only be considered if the tank is of XXL proportions "“ if the tank is of average size, it really is best to house a single specimen only. Adults can be kept with moderately pugnacious tankmates such as pygmy angelfish and medium sized tangs etc, as long as the Bicolour Anthias are introduced and established first. However, be sure to avoid any large, aggressive species that would prevent the Bicolour Anthias from venturing out to feed. These fish are usually perfectly safe in a reef set up, typically ignoring sessile invertebrates. Provide plenty of shady crevices and overhangs amongst the live rock so that these deeper water fish feel secure. Over time, they can become accustomed to brighter lighting, but they should be exposed to more intense illumination very gradually - this is why, when initially introduced, it is so important to provide plenty of refuges from the illumination of the average well-lit reef aquarium. A varied diet is a must to keep the fish in good health and for them to display their vibrant colouration. Ideally they will be fed small amounts several times per day (see below). Powerful filtration and protein skimming, plus a good maintenance regime are essential for maintaining optimal water quality despite the heavy nutrient input. As these fish inhabit areas of great tidal surge in the wild, they require vigorous water movement in the home aquarium - a high level of oxygenation at all times being of utmost importance.
Feeding
In the wild, this species is constantly on the lookout for food, taking zooplankton from the water column. Due to their fast metabolism, they require feeding in small amounts several times per day (i.e. at least 4 times) if they are to maintain good health. Offer a variety of fine meaty foodstuffs such as Mysis shrimp, vitamin-enriched brineshrimp, finely chopped krill/prawns etc in addition to zooplankton preparations (containing copepods and rotifers) which are often available in either frozen or refrigerated forms. Many will also take dried foods in time. Foods rich in carotenoids will help them to maintain good colours.
Breeding
This species has not been bred in the home aquarium.
