Sick Fish

[Burnbrae]

I recently reported my Jade Perch located in my aqaurium had become agressive towards each other and eventually the silver perch. However,there have been a spate of silver perch deaths. I originally put this trouble to infected wounds inflicted by the Jade Perch, I treated the silver perch by transferring them a salt bath in my hospital tank. Unfortunately the deaths continued and now believe the fish may be affected with a tumour. The wounds are well defined and clean, and are generally located around the head region including gills and nostrils.:(
The Jade and Silver perch located in the ap tank do not exhibit aggressive behaviour or signs of illness.

[Cecil]

From my limited experience disease is usually stress related and can be traced back to environmental stressors.