Clarence:
So it reads like a few things are going on, we can address these in a few minutes...but right now can you tell me about your tank, and this lion?. what type of lion, how new to your tank, your tanksetup, water chemistry parameters, and anything you can think is important.
Okay whats going on..simple stuff first. the cloudy eyes and disintegrating fins=bacterial infection, the white spots could be ich. Most likely the primary problem, bacteria is usually a secondary problem when the fishes immune system starts to deteriate. Can you describe the white spots? fluffy, flat, focal pinpoints, cottony. Are there alot of them on the body? fins? where are they?
Can you explain these black spots? what do they look like?
We can start treatment of the ich and the bacterial infection ASAP. But i want to make sure we're talking about the right problem
frank