Keep trying to get some pictures. Try backing away some and see if your camera has a macro mode as well. Mine seems to take better pictures in that mode. It looks like a little flower picture on my kodak camera.
If you can get it to focus better on the fish from a distance you can crop the picture down to showing just the fish and it should be easier to identify. If you can get a picture thats in focus that is a little further away but need help cropping it then pm me and I can crop it.