Question: Dark black spot on axolotls belly

[Alonyamin]

Hi guys,
For the last couple of days I've noticed that my axolotls have big dark or black spot in their belly,and I don't know if i need to be worry or not,please help me,thank you
Pic in the comment below.

 

[Bette]

Hi, I don't see a photo....

 

[Alonyamin]

 

[Alonyamin]

 

[Alonyamin]

hi, i don't see a photo....

Now i had posted it

 

[Bette]

Leucistics and albinos have very translucent skin, especially when young. That dark area appears to be the normal darkened area on these. You are seeing some of the internal organs. On very young larvae, that spot usually looks bright red.