BIG NEWS! Sign Up Today IKSL—International Koi Sign Language.

Research shows koi respond better when owners use consistent hand signals underwater. We call it IKSL.

The IKSL™ Certification Program is designed for koi owners seeking to establish meaningful, nonverbal communication with their fish through standardized underwater hand gestures. This course introduces foundational IKSL signs, movement pacing, and proper wrist articulation to ensure clear, respectful koi interaction. 

“Because eye contact alone is not enough.” 

Course Code: IKSL 101

Certification Level: Level I – Foundational Fluency Duration: “As long as your koi feel like cooperating”

Prerequisites: Two hands, one pond, mild optimism

Download Syllabus
Download Certificate
Download Level 1 Badge