I don't know what happened. It is in a 60 gl tank with 5 angels, couple neons, cories and small knife.. There are 3 rams, but my biggest one is missing an eye today.. it is freaky. I don't have aggressive fish, they have all been together for 3 months. just did a water change 3 days ago. Not sure what happened. I did see the 2 rams, ramming each other, but a missing eye??