Hey guys, i have a silver aro and hes about 8 to 9 inches long. Today i bought a pacu, oscar, and a jack dempsey. I putted them all in my silver aro's tank. Its a 55 gallon. How come after couple hours, everyone's eye starts to get white stuff over the lens. But my aro's eye isnt that serious. Is this some type of a fungus? Theres also like cotton like stuff on the oscar and jack dempsey. I dont think theres anything wrong with my water, because my datnoid is fine.