To add further: In the World Settings it needs to be noted that “Environment Color” will play a factor in this as well. If it’s set to be Black it will give you a black reflection. Using a lighter color will definitely help! 
To add further: In the World Settings it needs to be noted that “Environment Color” will play a factor in this as well. If it’s set to be Black it will give you a black reflection. Using a lighter color will definitely help!