Green terror wierd markings?

[GTcichlid74]

What is with these black lines on his body and dot on his tail? . I've seen them with the black dot on the side but idk about these stripes. I know some fishes colors get funky when their stressed but my parameters are damn near perfect. If someone could chime in I would appreciate it also I know he's very young but please give your opinion on the sex.

 

[Stanzzzz7]

They are normal.They come and go depending on the fishes mood.
They get called stress bars but any number of reasons can cause them to show.

 

[Jmart159]

The stripe is normal and it looks like it is a male to me.

 

[GTcichlid74]

Thanks guys, I love this little fish I always wanted a white saum I was finally able to find one. He's only eating bloodworms which is pissing me off but it's better than nothing it does seem to be fattening him up.he looked anorexic when I got him, he looks more bulky now compared to those pics