Silversides are small, thin, silvery fish that live in the ocean.
Silversides are often seen as a shiny and pretty fish.
Examples:
I saw a school of silversides swimming near the coral reef.
The silversides darted away when they saw the bigger fish.
The silversides are very fast swimmers.
The silversides look like tiny underwater rainbows.
There were so many silversides in the water, it looked like a silver cloud.
The silversides shimmered in the sunlight.