two black angel fish hate or like each other?

[Kira Yamato]

My friend gave me two black angel fish and they been together ever since no fighting or anything they stay by each other side but sometime i see one biting the other one tails is that mean they hate each other?

[stargrazer]

This is typical behavior for angels. Their name does not belie their temperament. Angels are cichlids and although they are in the most part peaceful fish, they can become territorial, especially when breeding.

[ICEMAN]

Thats normal behaviour buddy.Though if it gets out of hand...you know like always, then you better take it that they hate each other.
Your fish are fine.Besides, Angels [any colour] are very timid fish, they only mix with other angels...so if one of them dies , you better get another one quick.Don't bother about the fighting.