Sick Fish, Injured Fish?

[Soaup]

I have a 55 gallon tank with a group of african cichlids i just bought 3 cichlids maybe 3 days ago. Two i dont remember the scientific name but they look like giraffees they have the spots, anyways one of them was found the following morning mauled and i reset the tank to let everyone get their own new territory. I dont know why he got beat up the fish had no eyes no jaw no stomach, just ribs and the top of the skull. Now i took a look at this other cichlid i have never seen anything like it, Its Yellow with Vetrical stripes on its side, kinda brownish yellow, And the top of its head is purple it may be a hybrid but its beautiful. Anyways Ive had Africans for many years and taking a look at this fish this morning it looks like his eye was either beat up or he has some sort of fungus he has a white coat over his eye. What should I do, Take him out and isolate or should i try to treat the tank or do nothing and hope it was just an injury?

Please help soon if he is sick i dont want it spreading to my other guys.

 

[WILDER]

Poor fish they made a meal of him, R.I.P., white cloudy eye is a symptom of a desease, rather than a desease in it's self, can you post water stats in ammonia,nitrite,nitrate,and ph, any signs of flicking and rubbing against objects, any signs of illness on the fish, like a bloated tummy.