I did a 50 % water change everyday. Also I woke up one morning and found a bite mark on one of my rays that looked like it came from one of my endlis. I sold off all the endlis and the other ones tail started to look better immediately. I think the bichirs were nipping at them and what I thought was fungus might have actually been a bacterial infection. I added quite a bit of salt as well. Its all good now.