mandarins from what i understand are hard, due to eating pods constantly but just do some research on what you want and then post a list. I am sure others with more experience can help out with what order they should be added in. IME aggressive fish can be added together if similiar size and personality BUT there are many factors with fish so always research heavily. I dont have any experience with flame angels but I do with coral beautys and they seem to do quite well as long as provided with hiding areas and are relative in size to other tankmates, my coral beauty never messes with my clown but did with my domino damsel for first two days but now they have established who is the boss and are fine together.
