:irked: Hello...I'm Danni from Peoria,Az and I've been keeping blackmoors for a little over 5 years. Recently moved to Az where all my fish (4 in all) housed in a 29 gallon bowfront tank passed away. I changed fish after keeping an empty tank for about 3 months,but eventually regrouped and purchased more blackmoor. Recently one of my moors eye sunk in and I was wondering what causes this. Can anyone help me out?:cry: