The Clarkii Clownfish has a reddish-brown base colour with white stripes and an orange forehead when full grown. The juvenile fish are yellowish orange in colour with three white stripes on each side of the body. The Maldive Clarkii Clownfish has a dark brown to black base with white stripes. The anal fin is white with a yellow stripe on the top and bottom. The Pacific differs in having a White Tail.
Clarkii Clownfish is one of the hardiest, and therefore, one of the most common clownfish in home aquariums.
The females will be the largest of the pair, and two fish will usually stay close to each other in the aquarium. These fish are egg layers and will deposit the eggs on a flat surface, and defend the eggs from other tank mates. The eggs will normally hatch in 6-11 days depending on the temperature. The fry must be reared in a separate aquarium on a diet of rotifers then baby brine shrimp.
An aquarium containing an anemone of any type is desirable. In nature they host Bubble Tip Anemones, Malu Anemones, Sand Anemones, Ritteri Anemones and Carpet Anemones. It is semi-aggressive towards other clownfish and passive tank mates.
The Clarkii Clownfish diet consists of almost any chopped meaty food items, pellet and flake foods.