The tanks parameters 30'×12'×12 , pH 6.8, Nitrite 0, Nitrate 20ppm. Unknown ammonia level (I need to replace the kit). The temperature is 25°.
The blemish is on the cornea and is colored from off white through to early 80's NZ ODI uniform color, it looks like it would be solid to the touch.
Apologies for the poor quality photos. Getting these took time as the fish would always try to view me with its left eye, which is understandable.
Cheers for any and all advice.
Edit : embedded photos
Edited by Bruton77, 18 September 2015 - 09:13 PM.