The ink turtle refers specifically to the male tortoise whose body is completely black after sexual maturity (in this regard, turtles of other turtle species, no matter how black they are, are not what we generally call "ink turtles").

Strictly speaking, Mogui must conform to the standards. The following conditions: The skin of the whole body, including the head, neck, limbs, eyes, and carapace, is all black (in this sense, a male grass with only black skin and eyes, but not black shell cannot be called full black) Turtle's).

The so-called black turtle must be a male tortoise. No matter how black the shell of the female grass is, it cannot become a black turtle, because the skin and eyes of the female grass will not turn black.

If you don’t have a male tortoise, you will definitely turn into a black tortoise. After the male tortoise grows up and becomes sexually mature, the skin of the male tortoise will turn black as it grows older due to the influence of sex hormones (except for greenhouse grass), but It is not certain whether other parts can become very dark; this depends on breed and genetic factors, just like all men have beards, but some people have light beards and some people have thick beards.

Natural growth of male tortoise, normal development5 More than 20 years, or at least 3 years, can be fully sexually mature, and only at this time can there be the possibility of turning into black. There is no possibility of turning into an ink turtle).

The male grass begins to change color, starting with the eyes, then the pattern on the neck gradually fades and turns black, and finally the carapace turns black (usually the carapace turns black first, and the plastron later) .

This is basically difficult to judge, because not only does it have Due to genetic factors and regional variety factors, the shell color of male grass grown in some places is not very dark. Buying little male grass and expecting it to turn black in the future requires a certain amount of luck, haha. Therefore, if you want to buy a male grass that is more likely to turn dark in the future, please try to choose a male grass with eyes and neck patterns that have begun to turn black and a darker shell color (it is just more likely, not 100% guaranteed).