Crochet Amigurumi Aquarium Fish
If you love ocean themes, handmade décor, and cute amigurumi projects, these crochet aquarium fish are the perfect addition to your home or craft shop. In this step-by-step tutorial, you’ll learn how to crochet colorful amigurumi fish inspired by tropical species like clownfish and blue tang fish — perfect for decorative bowls, children’s rooms, or ocean-themed displays.
This beginner-friendly crochet pattern includes detailed instructions, shaping tips, assembly guidance, and finishing techniques to help you create realistic handmade fish.
To crochet these amigurumi fish, you will need:
Skill level: Beginner to Intermediate
Techniques used: Magic ring, single crochet (sc), increase (inc), invisible decrease (dec), slip stitch (sl st)
This rounded fish is worked in continuous spirals.
Round 1: Make a magic ring, 6 sc inside (6)
Round 2: Inc in each stitch around (12)
Round 3: (1 sc, inc) x6 (18)
Round 4: (2 sc, inc) x6 (24)
Round 5: (3 sc, inc) x6 (30)
Rounds 6–12: 30 sc around (30)
At this point, start lightly stuffing the body.
Round 13: (3 sc, dec) x6 (24)
Round 14: (2 sc, dec) x6 (18)
Continue stuffing firmly.
Round 15: (1 sc, dec) x6 (12)
Round 16: Dec around (6)
Fasten off and close.
Ch 8
Row 1: Starting in 2nd chain from hook, 7 sc
Row 2: Ch 1, turn, dec, 3 sc, dec
Fasten off leaving long tail for sewing.
Sew both tail pieces to the back of the fish slightly angled outward to create a realistic fin shape.
Ch 5
Row 1: 4 sc
Fasten off and sew to sides.
Using yellow yarn, embroider a stripe along the tail edge and a small curved line near the dorsal area to mimic tropical fish markings.
This fish uses color changes to create the iconic stripes.
Start with orange yarn.
Round 1: Magic ring, 6 sc (6)
Round 2: Inc around (12)
Round 3: (1 sc, inc) x6 (18)
Round 4: (2 sc, inc) x6 (24)
Rounds 5–6: 24 sc in orange
Change to white for 2 rounds.
Change back to orange for 4 rounds.
Continue:
Next Round: (2 sc, dec) x6 (18)
Stuff firmly.
(1 sc, dec) x6 (12)
Dec around (6)
Close.
Using black yarn, surface crochet slip stitches over the color change areas to define the stripes. This adds realism and a bold cartoon look.
Crochet tail as described above, but in orange with a thin black border using slip stitches.
Add small triangular side fins and one top dorsal fin.
To achieve a realistic aquarium look:
If you are placing these fish inside a glass bowl:
These handmade crochet fish are perfect for:
You can easily adapt this amigurumi fish pattern by:
Crocheting amigurumi fish is a fun, creative project that brings a colorful underwater world to life. Whether you’re making a handmade aquarium bowl display or adding ocean-themed décor to your home, these crochet fish patterns are easy to customize and incredibly charming.
