I recently adopted Hoss. A 4 year old German Shepherd that needed a home. My last two dogs were Dobermans. A female (Dizzy) who passed with age and a boy (Dozer) who had heart disease.

  A couple things.. the dobes were shiny and I could see them in the dark. I could see their coat. Hoss isn't shiny and he knows I can't see him. He's camoflauge. And he knows it. I have to use a light or headlamp just to see his eyes. He also doesn't like dog food. Any dog food. He only wants real food. He like knows the difference.

  He's a good boy. He's a big boy but skinny. He's smart and we train.

Why can’t you see him? Is he all black?  I have an all black dog and I can see him but sometimes in the dark, he blends in. He is indoors at night, though.

Lol. Of course they know the difference between kibble and real food. Do you know what he was fed before? What kibble have you tried feeding him now?

I’m trying to figure out why the dog is invisible.  The OP has not returned.

He was fed Kibble before. I'm feeding him better quality. Taste of the Wild 'Wetlands'.

If he still doesn’t like it, try something else. Is there a canned version of the same food? Or try adding toppers.  Has he been examined by a vet to see if there is a medical reason he’s not eating?

He's not invisible. He's way more camo like than the dobes were. The dobes were shiny and more reflective. He has a more 'flat' like color. Black back and nose, brown head and sides, light tan underneath.

If he’s skinny and not eating much, he could have worms.

Do you keep him outdoors?  

He was sort of thin. I think because he is only 4. It's not worms. I took him to the vet right away. We went back in 2 weeks also. I wanted to make sure he was healthy right away.