Hi people, I upgraded to a 55 gallon tank last week. Right now it is housing 2 Angels about 3 inches in size. Also 2 pristellas 3 Blackskirt tetras 4 Corys 8 Neons and one guppy. My question is would it be possible to add two more Angels.I saw some nice ones yesterday. They are still very small about one and a half inch. Would it be a gamble? Thank you for responding, Nora.