Walkthrough for yesterday's Leg Day: https://youtu.be/qMNZoqnJ2Cg

No one expects the Spani... a surprise Menderbug puzzle! I'm swapping with Shye, so you'll get her puzzle tomorrow. Here is a Koi Pond, which is a very recent (like, earlier this week) invention by @jkd.

Rules: Shade some fish, which are orthogonally connected groups of exactly 3 cells. Fish must not touch each other orthogonally. The head of each fish is given as a white dot. The numbers outside of the grid specify the amount of shaded cells in that row or column.

Score a Speedy Sloth 🦥 by solving the puzzle in 1:45 or less!
Collect a Quick Crab 🦀 by completing the puzzle in 3:30 or less!
Finish the puzzle in your own time to become the proud owner of a Japanese Pond Heron 🐦!

Example (Penpa+): http://tinyurl.com/yl6n469c
Puzzle (Penpa+): http://tinyurl.com/ytfkfywy

20 8 5 20 9 13 5 8 1 19 3 15 13 5! Mind the GAPP Vol. is here, with six tasty bonus puzzles for you to try!