My Glowfish Large-Bodied Tetra is changing color???

I bought a yellow neon glowfish; It's a large-bodied tetra, I don't buy the smaller ones because I'm afraid my angels will eat them. Now he looks like he's green, is that normal? This was from the day I brought him home with the other two - I love tetras and these guys really brighten up my tank

Maybe I just got a weird one lol, he won't stay still enough so I can get a decent pic either