Are flame angels and bicolor angels compatable?

[FreezeFins]

I have read conflicting info, are flame angels and bicolor angels compatible?

I read one article suggesting the bicolor angel cannot be kept with any other dwarf angels.

 

[FTMMWS]

It can be done ..Probably not in a 30 or 40 gallon,but a 75 and up..
Put them in together and the chances are better

 

[FreezeFins]

What about a 60 G