Help! I'm actually heart broken over this. My rams had paired off and were completely fine and healthy. No sign of sickness, nothing. All I noticed was their fighting habits. My two females are alive and fine, everyone else in the tank is happy. Water is clean, no nitrates no nitrites, temperature of water stays at 78 degrees or warmer. Both were healthy males. Vibrant color, good active attitude. I'm very heartbroken over this. No one new has been introduced into the tank. My females. Both healthy, happy and active. No fighting whatsoever.