A narrow fellow in the tank

A narrow fellow in the tank
Occasionally swims-
You don't want to meet him-did you not
His sharp teeth noticed.

The water waves as it speeds-
A smaller fish is seen ahead.
Then the giant with all its might,
A bite it takes to eat it right.

The small thing is gone
the narrow giant has his meal done-
The shape of its body is transformed
For it swallow the fish whole.

When near the tank
You stare at it,
It looks like nothing but a still plank.

This narrow fellow waits for the next day
To swim and play-
To catch its prey with no delay.

Inspired by "A narrow fellow in the grass" by Emily Dickinson
Brian B. / Per. 1