I've tried and tried. Any advice on taking photos of fish? Talk about constant motion!
Here's the best I've got. This is two photos of the same tetra. You can see the white puffy spot on its back. I think it also has a bit of black on it (a different fungus?), and its tail and fins don't look great.
This is the endler at rest, not in motion. Her tail hangs low instead of staying horizontal.
Bump: Sorry they are displaying sideways. When I open the files on my computer they are upright!