What age group is "The Mudskipper and the Tide Lines" suitable for?

Suitable for children aged 4-8. Reading time is about 2-5 minutes.

The Mudskipper and the Tide Lines

Name: The Mudskipper and the Tide Lines
Author: An original story by Hoot Tales

Jiw, a blue-brown mudskipper, hops across morning mangrove mud and studies pools and roots with curiosity.

Jiw the mudskipper loved hopping across the mud beside the mangroves. Sometimes the pools were full; sometimes the water retreated far away. He wanted to know when it would return.

Jiw and a fiddler crab watch water erase a mud line near mangrove roots and undisturbed animal burrows.

On the first day, Jiw drew a line in the mud, but water erased it. A fiddler crab suggested placing little twigs above the water marks without blocking anyone's burrow.

Jiw observes three twig markers beside the mud at dawn with a pale moon and a piece of bark bearing three wordless circles.

Jiw set twigs at three levels and watched the moon. The first morning water reached the low twig, the next the middle, and then almost the high one. He drew three circles on a floating piece of bark.

Jiw perches safely on a mangrove root as wind pushes water above the twig markers, carefully studying clouds and waves.

One windy day, water rose higher than expected. Jiw understood that the lines showed a pattern, not a promise. Before foraging, he checked the twigs, wind, clouds, and current together.

Jiw leads several young mudskippers toward a mangrove pool at evening as the tide slowly rises, everyone confident.

When young mudskippers asked if the tide was coming, Jiw did not answer too quickly. He invited everyone to examine the clues, then led them back to the pool just as the water rose.