Free printable
Under the Sea Mandala coloring page
A fish swims among coral, seaweed, and bubbles in an open underwater scene.
- Format
- Square image, ideal for A4 or Letter paper
- Use
- Personal, family, and non-commercial classroom use

Free printable
A fish swims among coral, seaweed, and bubbles in an open underwater scene.

About this printable
This under-the-sea coloring page places a fish among coral, seaweed, and bubbles in an open underwater scene. The central fish is easy to identify and the surrounding marine plants create varied shapes to color. Larger water-themed elements make the page approachable while still providing plenty of visual interest.
Use orange, yellow, blue, or striped combinations for the fish and vary the coral with pinks, reds, and purples. Several shades of green or turquoise can separate the seaweed. Leaving bubbles very pale or adding a light blue edge helps them stay distinct from the other ocean details.
Print on A4 or Letter paper using fit-to-page. Pencils are useful for fish stripes and coral shading, while markers can create vivid underwater colors on thicker paper.
Coloring notes
Color the main animal first, then choose a contrasting palette for the surrounding pattern so the character stays easy to see. Start with the main subject, then work outward through the smaller details. Colored pencils are great on everyday paper; markers work best on a heavier sheet.