The dynamics depend partly on the individual fish you have. Keep an eye on it and watch for nipped fins, signs of stress, or outright aggression. With 7 of them, there is a possibility you will have to re-home a couple, but you can wait and see who gets along with whom.Does it matter if there are other angels in the tank it's a 55 with 7 angels , moderately planted, all live plants. One is keeping the others away but I can't tell if any are male or female