Koi Forearm Tattoo

A black-and-grey koi swims upward along the forearm with a scaled body, flowing fins, long whiskers and a fanned tail behind its curved body.

Style: Old school
Placement: Arm, Forearm
Motif: Koi
Good for: For men, Sleeve
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An AI-generated concept, reviewed by our team before publishing. How we review designs

About this design

What the design shows

A koi rises vertically with its rounded head at the top right and its fanned tail below. Long whiskers curl outward from the mouth, while a large round eye and dark patches around the head give it a clear face. The body bends gently through the forearm and is covered in overlapping scale rows that become darker along the back. Two side fins open outward at the upper body and a larger lower fin follows the curve near the tail. The tail spreads into several soft pointed lobes, making the bottom outline wide and fluid. It is rendered in black and grey with fine outlines, crosshatching inside the scales, and pale open highlights across the belly. The on-skin image places it in the center of the forearm, head toward the elbow and tail toward the wrist. It fills a palm-length vertical space without any water or floral background.

In this design

upward koi
curled whiskers
overlapping scales
side fins
fanned tail
dark head patches

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Placement

Placement and size

The koi climbs the middle forearm in the preview, with its head near the elbow and tail drifting toward the wrist. Its long vertical profile also suits the calf, outer upper arm, or side of the thigh. Keep it palm length so the eye, whiskers, and scale rows remain readable. A smaller version should simplify the scales first while preserving the round head, fin shapes, and wide tail.

Patchwork

Building it into a patchwork

This fish has medium visual weight and a flowing vertical direction, so it can connect pieces above and below it in a sleeve. Small waves, reeds, or a flower can sit outside its fins without covering the central body. The tail is widest at the bottom and benefits from an open neighboring space. Avoid placing a heavy outline against the whiskers. Leave a skin gap along both sides so the scaled body stays separate from surrounding designs.

Small pieces that pair with it

A small wave curl below the tail
A narrow reed beside the upper fin
Two water bubbles near the whiskers

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On skin

More arm tattoos on skin

Other reviewed designs previewed on the same body area, to compare size and placement.

For your artist

Notes for your tattoo artist

01Keep the head angled toward the upper right.
02Retain the whiskers as separate curved lines.
03Use lighter belly scales against the darker back.
04Check the fish's rise along the forearm before stenciling.

Made and reviewed

How this design was made

Design: Generated with AI image tools under our direction, then reviewed by the Patchwork Tattoos team: a readable outline, the same design in the clean and on-skin views, and a reviewed Builder piece.
Page notes: Written from the clean design and the on-skin preview of this exact design, then checked against both pictures.
Last reviewed: 2026-10-03
Your tattoo: A concept for planning. Your artist will redraw it for your skin, placement and size, so the finished tattoo will differ from the image.
License: Free to download and use as the reference for your own tattoo and to share with your artist. Selling the file or republishing it in a collection is not allowed.

How we review designs Read the design license

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