Abbreviations ​MR: Magic Ring ​sc: Single Crochet ​inc: Increase (2 single crochet in the same stitch) ​dec: Decrease (crochet 2 stitches together) ​ch: Chain ​dc: Double Crochet ​hdc: Half Double Crochet ​sl st: Slip Stitch ​Materials List ​Yarn: Cotton yarn suitable for amigurumi in your choice of colors (e.g., main color, stripe color, fin/tail color) ​Crochet Hook: 2.0 mm or 2.5 mm (or appropriate size for your yarn) ​Safety Eyes: 6 mm or 8 mm safety eyes (1 pair) ​Stuffing: Fiberfill / polyfill ​Notions: Tapestry needle, scissors, stitch marker ​Body (From Mouth to Tail) ​(Change colors as desired to create stripes) ​Rnd 1: 6 sc in MR (6) ​Rnd 2: (1 sc, 1 inc) * 3 (9) ​Rnd 3: (2 sc, 1 inc) * 3 (12) ​Rnd 4: (1 sc, 1 inc) * 6 (18) ​Rnd 5: (2 sc, 1 inc) * 6 (24) ​Rnd 6: (3 sc, 1 inc) * 6 (30) ​Rnd 7: (4 sc, 1 inc) * 6 (36) ​Rnd 8: (5 sc, 1 inc) * 6 (42) ​Rnds 9–15 (7 rounds): sc in each st around (42) (Insert safety eyes between Rnds 7 and 8, leaving about 8–9 stitches between them.) ​Rnd 16: (5 sc, 1 dec) * 6 (36) ​Rnd 17: (4 sc, 1 dec) * 6 (30) ​Rnd 18: (3 sc, 1 dec) * 6 (24) (Start filling firmly with fiberfill.) ​Rnd 19: (2 sc, 1 dec) * 6 (18) ​Rnd 20: (1 sc, 1 dec) * 6 (12) ​Rnd 21: 6 dec (6) ​Fasten off: Weave the tail through the front loops with a needle to close the hole tightly and hide the yarn end. ​Side Fins (Make 2) ​Rnd 1: 6 sc in MR (6) ​Rnd 2: (1 sc, 1 inc) * 3 (9) ​Rnd 3: sc in each st around (9) ​Rnd 4: Fold the opening flat and sc across (4 sc) to close. Fasten off, leaving a long tail for sewing.

Dorsal Fin (Top Fin) ​Ch 8. ​Starting in the 2nd ch from hook: 1 sc, 1 hdc, 3 dc, 1 hdc, 1 sc. Fasten off, leaving a long tail for sewing. ​Ventral Fin (Bottom Fin) ​Ch 6. ​Starting in the 2nd ch from hook: 1 sc, 1 hdc, 2 dc, 1 sc. Fasten off, leaving a long tail for sewing. ​Tail Fin ​Rnd 1: 6 sc in MR (6) ​Rnd 2: 2 sc in each st around (12) ​Rnd 3 (Waves): (1 sl st, [1 hdc, 2 dc, 1 hdc] in the same st, 1 sl st) * repeat 4 times. Fasten off, leaving a long tail for sewing. ​Assembly ​Eyes: Ensure they are secured between Rnds 7 and 8 before closing the body. ​Side Fins: Sew symmetrically onto the left and right sides of the body, about 3–4 rounds behind the eyes. ​Top & Bottom Fins: Sew the dorsal fin along the top center line of the back, and the ventral fin along the bottom center line of the belly. ​Tail: Sew the tail fin piece to the very back end of the body where it was closed off. Weave in all loose yarn ends.