Amigurumi Patterns

Serene Betta Fish in a Jar Free Pattern – Cozy Aquatic Amigurumi

Anonymous August 18, 2026

Serene Betta Fish in a Jar Free Pattern – Cozy Aquatic Amigurumi

Bring a touch of tranquil underwater beauty to your shelf with this handcrafted betta fish nestled in a textured yarn jar. This soft, whimsical piece is perfect for nature lovers and yarn enthusiasts seeking a unique, calming project. The soothing color palette of teal, coral, cream, and soft blue evokes a serene aquatic scene, making it a delightful addition to any desk, shelf, or cozy corner. Whether you're a seasoned crocheter or just starting your amigurumi journey, this pattern is designed to be approachable and rewarding.

Materials Needed

Before you begin, gather the following materials. This project uses simple, readily available supplies:

  • Yarn: Worsted weight cotton or acrylic yarn in the following colors:
    • Teal (for the fish body)
    • Coral (for the tail and fins)
    • Cream (for the jar)
    • Soft blue (for the lid and water effect)
    • Small amounts of black and white (for the eyes)
  • Crochet Hooks:
    • 3.5mm crochet hook (for the fish and jar)
    • 3.0mm crochet hook (for small details)
  • Other Supplies:
    • Stitch markers
    • Yarn needle
    • Polyester fiberfill stuffing
    • Scissors
    • Optional: 6mm safety eyes (or black yarn for embroidery)

Gauge: Not critical for amigurumi, but aim for tight stitches to prevent stuffing from showing. Approximately 5 sc x 6 rows = 1 inch.

Step-by-Step Instructions

This pattern is crocheted in continuous spirals unless otherwise noted. Use a stitch marker to track your rounds. Let's begin with the star of the show—the betta fish!

Betta Fish Body

Start with teal yarn and your 3.5mm hook.

  1. R1: Magic ring, 6 sc (6)
  2. R2: Inc in each st around (12)
  3. R3: (Sc, inc) around (18)
  4. R4: (2 sc, inc) around (24)
  5. R5-8: Sc in each st around (24) — This creates the body height.
  6. R9: (2 sc, dec) around (18)
  7. R10: (Sc, dec) around (12)
  8. Stuff firmly with polyester fiberfill. Make sure the body is plump but not overly stretched.
  9. R11: Dec around (6)
  10. Fasten off, leaving a tail. Weave the end through the front loops of the remaining 6 stitches and pull tight to close. Weave in the end securely.

Betta Fish Tail

Attach coral yarn to the back of the body at R8 (the round just before the decreases begin). Use your 3.5mm hook.

  1. R1: Ch 1, 2 sc in same st, sc in next 2 sts, 2 sc in last st (6) — You are working across the back of the body.
  2. R2: Turn, ch 1, 2 sc in first st, sc in next 4 sts, 2 sc in last st (8)
  3. R3: Turn, ch 1, 2 sc in first st, sc in next 6 sts, 2 sc in last st (10)
  4. R4-6: Turn, ch 1, sc in each st across (10) — Work these rows without increases to create the fan shape.
  5. R7: Turn, ch 1, sc2tog, sc in next 6 sts, sc2tog (8)
  6. R8: Turn, ch 1, sc2tog, sc in next 4 sts, sc2tog (6)
  7. Fasten off, leaving a long tail for sewing. Sew the tail to the body, shaping it into a fan. Use a few whip stitches along the top edge to secure it flat against the body.

Betta Fish Fins (Make 2)

These delicate side fins add movement and realism. Use coral yarn and your 3.5mm hook.

  1. R1: Magic ring, 4 sc (4)
  2. R2: (Sc, inc) around (6)
  3. R3: (2 sc, inc) around (8)
  4. R4: Sc in each st around (8)
  5. Fasten off, leaving a tail. Sew to the sides of the body near the head (around R4-R5 of the body). Position them slightly angled downward for a natural look.

Betta Fish Eyes

With black yarn, embroider small French knots or use 6mm safety eyes on R4 of the body, spaced 4 stitches apart. If using safety eyes, insert them before stuffing the body. For embroidered eyes, use a yarn needle and make two small stitches. Add a tiny white stitch on top of each eye for a shiny, lifelike effect.

The Jar

Now let's create the cozy home for your fish. Use cream yarn and your 3.5mm hook.

  1. R1: Magic ring, 6 sc (6)
  2. R2: Inc in each st around (12)
  3. R3: (Sc, inc) around (18)
  4. R4: (2 sc, inc) around (24)
  5. R5: (3 sc, inc) around (30)
  6. R6: (4 sc, inc) around (36)
  7. R7-12: Sc in each st around (36) — This creates the straight sides of the jar.
  8. R13: (4 sc, dec) around (30)
  9. R14: (3 sc, dec) around (24)
  10. R15: (2 sc, dec) around (18)
  11. R16: (Sc, dec) around (12)
  12. Fasten off, leaving a long tail. Stuff lightly to keep the jar's shape—it should be soft but not overstuffed. Sew the opening closed by weaving the tail through the front loops of the remaining stitches and pulling tight. Weave in the end.

Jar Lid

Use soft blue yarn and your 3.5mm hook for a snug-fitting lid.

  1. R1: Magic ring, 6 sc (6)
  2. R2: Inc in each st around (12)
  3. R3: (Sc, inc) around (18)
  4. R4: (2 sc, inc) around (24)
  5. R5: (3 sc, inc) around (30)
  6. R6: (4 sc, inc) around (36)
  7. R7: Sc in back loops only around (36) — This creates a neat edge for the lid to sit on the jar.
  8. R8-10: Sc in each st around (36)
  9. Fasten off, leaving a tail. Place the lid on top of the jar, aligning the back-loop edge with the jar's opening. Sew in place using a whip stitch around the edge.

Water Effect

Add a subtle aquatic touch inside the jar with a small spiral. Use soft blue yarn and your 3.5mm hook.

  1. R1: Magic ring, 6 sc (6)
  2. R2: (Sc, inc) around (9)
  3. R3: (2 sc, inc) around (12)
  4. Fasten off. Place this spiral inside the jar before closing, or attach it to the bottom of the jar with a few stitches.

Assembly

Now it's time to bring everything together!

  1. Place the betta fish inside the jar, positioning it so the tail fans out beautifully. The fish should sit upright, with the tail touching the back of the jar.
  2. Sew the fish to the bottom of the jar using a few invisible stitches through the fish's body and the jar's base. This keeps it securely in place.
  3. Add a small stitch of coral yarn at the base of the jar to mimic a tiny plant or pebbles. You can also add a few small French knots in coral or soft blue for extra texture.
  4. Weave in all remaining ends with your yarn needle.

Your Serene Betta Fish in a Jar is complete! This charming piece measures about 4 inches tall and 3 inches wide, perfectly sized for a shelf or desk. The thick, soft yarn and visible stitch texture give it a plush, tactile appearance that invites you to pick it up and admire your handiwork. Enjoy your cozy aquatic creation!


Also Check Out: We think you'd love this beautiful pattern on our sister site: Chunky Chevron Striped Knitted Throw