Crochet Sea Anemone with Clownfish: A Complete Pattern Guide for Your Underwater Amigurumi Project
There is something undeniably magical about recreating the ocean in yarn. The swaying tentacles, the vivid pops of orange and white, the cozy symbiosis between a clownfish and its anemone home — all of it translates beautifully into crochet. Whether you are a seasoned amigurumi maker or someone who has just finished their first granny square and wants to try something more adventurous, this crochet sea anemone with clownfish project is the kind of pattern that keeps your hook moving and your heart happy.
In this guide, you will find everything you need to bring this iconic ocean duo to life: material lists, stitch breakdowns, pattern instructions, tips for getting the tentacles just right, and ideas for displaying or gifting your finished piece. By the end, you will have a fully dimensional, stuffed sea anemone base with flowing tentacles and a cheerful little clownfish nestled inside, ready to brighten any shelf, nursery, or ocean-themed corner of your home.
Why Crochet an Underwater Scene?
Before diving into the pattern itself, it is worth talking about why this particular project has become such a beloved choice among amigurumi enthusiasts. The appeal goes beyond the obvious nostalgia for a certain animated film about a fish named Nemo. Sea anemones and clownfish represent one of nature’s most fascinating relationships — the fish is immune to the anemone’s sting and uses it for shelter, while the fish keeps the anemone clean and chases away predators. That story of mutual care translates into a crochet project that feels meaningful, not just decorative.
From a craft perspective, the project is also a wonderful skills builder. You will work in continuous rounds to create a sturdy, rounded base. You will practice making long, curled tentacles that require a specific technique to achieve that natural spiral effect. And you will make a small but detailed amigurumi clownfish that calls on color changes and shaping in ways that build real confidence with your hook. The finished piece is one of those projects that gets picked up and admired by everyone who walks into the room.
Materials You Will Need
Having the right supplies before you begin makes the entire process smoother. Here is a full list of what you will want to gather.
Yarn: For the anemone base, choose a deep jewel-toned color that evokes the ocean floor. Rich purples, burgundies, deep pinks, and forest greens all work beautifully. For the tentacles, pick a color that is a shade or two lighter or more vibrant — this contrast is what gives the anemone its lifelike dimensionality. For the clownfish body, you will need a bright orange, white, and black.
A worsted weight yarn (size 4) works well for this project if you want a finished anemone that sits about five to six inches tall and eight inches wide at its fullest point. If you prefer a smaller, denser piece, drop down to a DK weight yarn and use a correspondingly smaller hook.
Hook: A 3.5mm hook is recommended for DK weight yarn, while a 4.5mm or 5mm hook suits worsted weight nicely. The goal is a tight gauge that keeps the stuffing hidden and the fabric sturdy.
Stuffing: Polyester fiberfill stuffing is the standard choice. Use enough to give the anemone base a firm, rounded shape that will hold upright on its own.
Safety eyes: 9mm or 12mm safety eyes work well for the clownfish. For a child-safe version, you can embroider the eyes using black yarn instead.
Stitch markers: Locking stitch markers are invaluable for keeping track of your rounds, especially in continuous crochet.
Yarn needle: For weaving in ends and sewing pieces together.
Scissors: Always close at hand.
Wire (optional): Thin floral wire or pipe cleaners can be inserted into the tentacles before they are closed off if you want them to hold a pose. This is completely optional but adds a wonderful sculptural quality.
Understanding the Stitches
This pattern relies on a handful of core crochet stitches. If you are comfortable with basic amigurumi, you will recognize most of them immediately.
Magic ring (MR): Also called a magic circle or adjustable ring, this is the starting point for most amigurumi projects. It allows you to begin crocheting in the round without leaving a hole in the center.
Single crochet (sc): The workhorse of amigurumi. Almost all shaping in this pattern uses single crochet stitches.
Increase (inc): Two single crochet stitches worked into the same stitch, which widens the fabric.
Decrease (dec): Also called an invisible decrease. Insert your hook into the front loops of two consecutive stitches and work them together as one stitch. This narrows the fabric.
Slip stitch (sl st): Used to join rounds when needed and to finish off pieces cleanly.
Chain stitch (ch): Used as the foundation for the tentacles.
Single crochet in the third loop: This technique, used for creating the tentacle curl, involves finding the ridge loop on the underside of a chain stitch and working into it. It naturally causes the tentacle to spiral, mimicking the organic curves of a real anemone.
Pattern Instructions: The Anemone Base
The base of the anemone is a wide, slightly flattened dome shape, like a bowl turned upside down. It needs to be wide enough at the opening to allow the clownfish to nestle inside comfortably.
Foundation (worked in MC, the main color for the base):
Start with a magic ring. Work 6 single crochet into the ring and pull the tail to close. Place a stitch marker in the last stitch to mark the end of the round. You will work in a continuous spiral, moving your stitch marker up each round.
Round 1: 6 sc into magic ring (6 stitches)
Round 2: Inc in each stitch around (12 stitches)
Round 3: (Sc 1, inc) repeat around (18 stitches)
Round 4: (Sc 2, inc) repeat around (24 stitches)
Round 5: (Sc 3, inc) repeat around (30 stitches)
Round 6: (Sc 4, inc) repeat around (36 stitches)
Round 7: (Sc 5, inc) repeat around (42 stitches)
Round 8: (Sc 6, inc) repeat around (48 stitches)
Round 9: (Sc 7, inc) repeat around (54 stitches)
Round 10: (Sc 8, inc) repeat around (60 stitches)
Rounds 11 through 15: Sc in each stitch around, no increases or decreases (60 stitches per round)
At this point your piece should look like a wide, shallow bowl. This is the body of the anemone. Now you will begin to close the top inward slightly, creating a narrower opening through which the clownfish will peek.
Round 16: (Sc 8, dec) repeat around (54 stitches)
Round 17: Sc in each stitch around (54 stitches)
Round 18: (Sc 7, dec) repeat around (48 stitches)
Before continuing, stuff the base firmly with fiberfill. You want it to feel solid and hold its dome shape.
Round 19: (Sc 6, dec) repeat around (42 stitches)
Round 20: Sc in each stitch around (42 stitches)
Round 21: (Sc 5, dec) repeat around (36 stitches)
Fasten off and weave in the end. The opening at the top of the base should now be about two to three inches across — the perfect cozy spot for your clownfish.
Pattern Instructions: The Tentacles
The tentacles are the most visually striking part of the whole project. They should look wild, curling, and organic, with a slight translucent quality if you choose a lighter yarn. Make between twelve and eighteen tentacles depending on how lush you want the finished anemone to look. The more tentacles, the more dramatic the display.
For each tentacle (worked in CC, the contrasting color):
Chain 25. This gives you a medium-length tentacle. For variety, make some tentacles with a chain of 15 for shorter ones and others with a chain of 35 for extra-long dramatic curls.
Now work back along the chain: 3 single crochet in the third loop of each chain stitch all the way to the end. Working three stitches into each chain loop is what creates the natural curl. The more stitches you pack in, the tighter the spiral.
Fasten off, leaving a long tail for sewing.
If you are adding wire, cut a piece of floral wire slightly shorter than the length of the tentacle. Fold over the tip of the wire to prevent it from poking through. Before sewing the tentacle to the base, fold the tentacle in half around the wire, using your fingers to manipulate the curl into an organic shape. Then sew through the base of the tentacle to secure.
Attach the tentacles evenly around the inside lip of the anemone opening and down into the body, using your yarn needle and the long tail. Stagger their lengths so the arrangement looks natural rather than uniform. A real anemone does not keep its tentacles in a tidy pattern, and yours should not either.
Pattern Instructions: The Clownfish
The clownfish is a small amigurumi piece worked in three colors: orange (MC), white (CC1), and black (CC2). The color changes create the distinctive vertical stripes.
Body:
Start with a magic ring in orange.
Round 1: 6 sc into magic ring (6 stitches)
Round 2: Inc in each stitch around (12 stitches)
Round 3: (Sc 1, inc) repeat around (18 stitches)
Round 4: (Sc 2, inc) repeat around (24 stitches)
Rounds 5 through 7: Sc in each stitch around (24 stitches)
At round 5, introduce the first white stripe by switching to white yarn for a band of 4 rounds, then switch back to orange. For the classic clownfish look, you want three white stripes evenly spaced along the body, each outlined with a narrow line of black. You can add the black outline by surface slip stitching a line of black yarn along the edges of each white stripe after the main body is complete.
Round 8: Switch to white. Sc in each stitch around.
Round 9: Continue in white. Sc in each stitch around.
Round 10: Switch back to orange. (Sc 2, dec) repeat around (18 stitches)
Round 11: (Sc 1, dec) repeat around (12 stitches)
Insert safety eyes between rounds 3 and 4, about 6 stitches apart. Stuff the body firmly.
Round 12: Dec in each stitch around (6 stitches)
Fasten off and close the opening by weaving through the remaining stitches and pulling tight.
Fins: Make two small fins in orange using the following: chain 6, sc in second chain from hook and each chain across, turn, sc back across, fasten off. Sew one fin to each side of the body.
Tail fin: Chain 8, sc in second chain from hook and each chain across, fasten off. Fold in half and sew to the back end of the body, fanning the loops slightly to suggest the distinctive rounded tail of a clownfish.
Using your black yarn and a yarn needle, embroider a small curved smile below the safety eyes and add a thin black outline along the edge of each white stripe.
Assembling the Finished Piece
Once all your pieces are complete, the assembly is the most satisfying part. Hold the anemone base in front of you and let the tentacles cascade loosely over the opening. Take a moment to arrange them the way you like before making anything permanent. This is your chance to adjust lengths and directions.
Once you are happy with the overall shape, nestle the clownfish into the center of the opening. You can sew the fish lightly to the base at a couple of points on the underside of the body, allowing it to look as though it is floating naturally in the tentacles without flopping over.
If your anemone will be displayed somewhere that gets bumped or handled often, a few additional stitches securing the fish will keep it in place. If it is a display piece on a high shelf, it can simply rest in the tentacles without being sewn.
Tips for a Professional Finish
Tight tension is your best friend in amigurumi. If you can see the stuffing through your stitches, go down a hook size. The fabric should be dense and spring back slightly when pressed.
When attaching tentacles, work in a rough circle around the inside of the opening, then fill in the middle with a few shorter tentacles for depth. Varying the direction and angle of each tentacle dramatically improves the organic appearance.
If your finished piece tips to one side, consider adding a small circular base of cardboard or craft foam to the bottom of the anemone before closing off. This gives it a flat, stable surface to sit on.
Blocking is not strictly necessary for amigurumi but lightly steaming the tentacles can help them hold their curl more consistently if you have not used wire.
Gift and Display Ideas
A crochet sea anemone with clownfish makes a wonderful gift for a range of occasions. It is an obvious choice for a child’s ocean-themed nursery, where it can sit on a shelf alongside other sea creature amigurumi. It also works beautifully as a desk toy for anyone who loves the ocean or keeps an aquarium.
For a more ambitious project, consider crocheting an entire ocean floor scene: a sandy-colored base, several anemones, a few more fish, some coral, and perhaps a small crab or starfish. Grouped together, these pieces create a stunning display that shows off the full range of what crochet can do.
The clownfish on its own, without the anemone, also makes a sweet keychain or bag charm if attached to a metal ring and chain.
A Few Final Thoughts
One of the quietest joys of crochet is that you can make something beautiful and completely unique with just a ball of yarn and a small metal hook. This crochet sea anemone with clownfish project is a reminder of that. It is detailed enough to feel like an accomplishment and approachable enough that you will want to make another one the moment you finish. Try a different color palette on your second attempt — a deep teal anemone with a bright yellow fish, or a lavender base with vivid coral tentacles. The ocean is full of color, and so is your yarn stash.
Take your time with the tentacles, trust your tension, and do not rush the assembly. The finished piece will be something you are genuinely proud to put on display or hand to someone you love.
Happy hooking.
