My 75 gallon tank, planted with real and fake plants, has 3 black angels, 2 gold gouramis(both females), and 2 german blue rams. I just introduced a green severum and a rainbow cichlid. The angels and gouramis are chasing the 2 new fish around a little bit. Should i be worried? There hasnt been any fighting or stare down contests just a little chasing. Is this because the fish are new and the old ones are getting acclimated? Or is this a concern?