I have one male angel fish in my 46 gallon planted tank. He has only been aggressive when he was breeding, but his mate has been gone for more then 6 months now. The last 2 weeks or less he has become really aggressive toward the tetras in the tank. He chases anyone that comes near him until they hide. Most of the fish hide except one stupid molly who likes to hang out at the top (the 2nd molly has been MIA for 3 days now...) and my angle has been really picking on him. The other fish that come out mostly stay at the bottom of the tank or very lose to the plants away from the Angle fish that stays front and center. Help?