What are koi carps usually tattooed with?

Koi carps are often tattooed with vibrant colors and intricate patterns, symbolizing various concepts such as perseverance, strength, and transformation. Common motifs include waves, lotus flowers, and cherry blossoms, which enhance the koi's significance in Japanese culture. The tattoos can represent personal journeys or spiritual growth, with the koi's ability to swim upstream serving as a powerful metaphor.