I have a Angelfish pair in my 60G tank. I started out with 6 (hoping to find a pair) and once the pair established and laid eggs twice, they became very aggressive towards the other fish (as expected). I brought the others to the LFS yesterday and since then the male has been hiding. He will come out and eat, but then returns to hiding under a plant. Yesterday he was lively as could be, chasing all of the other fish around. Is he just adjusting from being so stressed out before? There have been no other changes to the tank, water parameters and other fish are doing fine.