Inside a fish-tank a fish is infected by fungi; its brain chemistry now compromised –causing a decreased sense of orientation and balance– over time the fish is no longer able to swim properly
or distinguish surface from bottom.
I watch it swim upside-down while its body slants to one side or another
sometimes adopting other incongruent swimming patterns
its little scales turn whiteish a wither
the other fish nibbling its fins constantly
and yet it feeds