Many novice Red-faced Mud Turtle keepers may encounter such a problem: when purchasing from a vendor, the turtle has a bright red head, and it remains the same upon arrival, but after keeping it for a while, why does some melanin appear on the top of the head for no apparent reason?
Melanin Accumulation in Red-faced Mud Turtles
Firstly, the Red-faced Mud Turtle is not an “albino variety,” so it cannot be completely devoid of melanin. The reason for being able to cultivate Red-faced Mud Turtles with entirely red heads is that vendors provide an excellent “color environment” when raising them, which suppresses the accumulation of melanin in the turtle’s body. As a result, the turtles exhibit the characteristic of having entirely red heads. Melanin does not disappear completely; it is merely suppressed. Therefore, even if the Red-faced Mud Turtle maintains a large red head for a long time, once it reaches maturity, it will still produce a certain amount of melanin.
The Impact of Environmental Changes on Red-faced Mud Turtles
Returning to the question at hand, frequent changes in the environment over a short period lead to continuous changes in the turtle’s adaptability and significantly increase the turtle’s sensitivity. This sense of insecurity prompts it to activate its own protective system and bring out its original protective color, which is melanin. Moreover, the environment you provide for the turtle may not be an ideal color environment, leading to a substantial accumulation of melanin in the turtle.
Creating an Ideal Color Environment
Therefore, for friends who highly value coloration, it is particularly important to properly settle the turtle after receiving the goods. An appropriate temperature, a warm environment, a pure white background, and other factors conducive to coloration should be provided to enhance the turtle’s sense of security, thereby suppressing the production of melanin. This also helps the turtle to adapt to the new environment better and faster.
Original article by KPTer, if reproduced, please cite the source: https://www.kaipet.com/en/head-red-faced-mud-turtle-turn-darker-acquisition
