Dwarf Angelfish – Colin’s Angelfish (Centropyge colini)

Updated on January 30, 2021 by

The Colin’s Angelfish otherwise called Cocos Keeling Angelfish is one of the dwarf Angelfish species measuring up to 3’’ (7.62cm). They have a yellow body coloration with the upper quarter part decorated with bright blue coloration including the dorsal fin.

Quick stats – Colin’s Angelfish

Category Info
Origin Indonesia
Max size 3” / 7.6 cm
Aquarium Min 100 gallon / 380 liters
Water 72-79° F / 23-27° C

dKH 8-12, pH 8.1-8.5

sg 1020-1.025
Care level Expert
Behaviour Peaceful
Diet Omnivore
Family Pomacanthidae
Colors Blue, yellow
Lifespan 15 years

Colin’s Angelfish in the natural habitat

They are native to the reef environment of the Indo-West Pacific Ocean, spanning through Cocos (Keeling) Island giving rise to its naming. They are also found in Fiji of the South Pacific.

They are rare species that are often found hidden within the rocks and rubble on reef top-offs and would usually move in harem of 3-7 fish including a male and several females.

They exhibit sequential hermaphroditism where the dominant female becomes a male in the absence of a male in the group.

Colin’s Angelfish in the ideal aquarium

Centropyge colini

Setting up the best aquarium for Colin’s Angelfish will require a well filtered tank of 100 gallon/378.5 litres or larger within the minimum requirements of a saltwater tank having 23-27˚C (72.0-78.0F), pH 8.1-8.54, 8-12 dKH, 1020-1.025 sg.

A lot of live rock work should be provided with hiding places to mimic their natural habitat. These live rocks should also encourage algae growth for grazing.

They can adapt to an increased lighting, but it is better to keep them in their preferred dim lighted tank.

They are suitably housed alone, but if they should be added with other species, then they should be added first before introducing other peaceful species alike.

Colin’s Angelfish are unsuitable with corals as they can nip and damage them, but if it must be introduced, they should be closely monitored with caution.

Colin’s Angelfish feeding

They are omnivores and feed on a variety of meaty and vegetable matters including Spirulina, Mysis, Shrimp and other high quality prepared foods.

As rare species they are seldom found in pet shops and fish stores and are recommended only for expert fish keepers.