Xanthochromic

Said of a fish (or a variety) whose body has lost all black pigmentation with the exception of the eyes: unlike an albino, an xanthochromic fish has black eyes.

Xanthochromic is a term used to describe the aquarium fish with a bright yellow color. This color is the result of skin pigmentation due to the presence of carotenoids, yellow, orange or red pigments which are in plants and are absorbed by fish when they feed. Xanthochromic fish are generally very attractive and are often sought after by aquariophiles for their brilliant color and beauty.

There are many species of aquarium fish that can be considered xanthochromic, but some of the most popular include golden molly, golden guppy and golden clown fish. These species all have a bright yellow color which can vary in intensity depending on their diet and their environment.

It is important to note that the xanthochromic color is not only an aesthetic asset for aquarium fish. In some fish, this color can be used as a means of communication and defense. For example, xanthochromic fish can use their bright color to attract sexual partners or to camouflage themselves in their environment by melting into yellow plants or corals.

There are also theories that the xanthochromic color could be beneficial for fish health. According to some studies, the carotenoids contained in foods that give fish their bright yellow color could have antioxidant properties and strengthen the immune system for fish.

In summary, the term xanthochromic designates aquarium fish with a bright yellow color due to the presence of carotenoids in their skin. These fish are often very attractive and can be used for communication and defense purposes in their natural environment. There is also evidence that the xanthochromic color could be beneficial for fish health.