Angelfish cohabitate?

Can an angelfish and a pygmy angelfish cohabitate the same 125g tank? I currently have a flame angel and was considering an emperor angel.

 

I'm assuming that the emp is a juv ?
If so i see no reason for them not to get along. Flames tend to only be aggressive towards other dwarfs.
My flame is incredibly docile towards my Koran(juv), which would be similarly markings/shapes to an emp(juv).

However, each fish is different

 

Interesting article: The Ultimate SW Angel Tank

The trick is either to make the decision to house a single specimen OR crowd the tank to avoid territorial issues. I don't think you'll have a problem with the two you're looking at getting, but I would make sure the Emporer is larger than the dwarf. Moreover, you really have to powerfeed those juvi angels if you plan to have success with them.

 

I had a Coral Beauty in my 210 reef and when i added a Flame the Flame was totally beaten down to the point i had to remove him and he later died.
However, i added a Bi-Color which was much smaller then the CB and he is pretty much ignored and still going strong.