These adorable mini fish Jell-O cups will be a hit at any beach party, pool party, or summer party! Quick to make with only three ingredients and fun to eat! These sweet treats look like little fish tanks with bubbly water, and will make both kids and adults smile.

Side vie of bubbly blue gelatin with a candy fish inside and on top in a cup and colorful candy nerds on the bottom of the cup from the side.

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Table of Contents

Why We Love Jell-O Fish Tank Cups

Only 3 Ingredients– I love a simple recipe, and this cute easy recipe doesn’t require any decorating skills.
Fun For Some Many Types of Parties! – These cute Jell-O fish cups are perfect for beach themes, ocean themes, under the sea, pool parties or many other fun summer parties or BBQs!
Cute For Kids– Watch the kid’s eyes light up when you bring out these fun treats!

Try my dirt pie cups for another fun mini-themed dessert that will make the kids excited, and works great for parties!

Ingredients For Jell-O Fish Tank Cups

Ingredients for gelatin fish tank cups in bowls on a counter with labels from overhead.

6 ounces blue gelatin I used berry blue Jell-O but any blue version works. Store brand works just fine also.
1 ½ cup Nerds candy you need about 13 ounces of candy
12 pieces gummy fish candy I used Swedish fish

You will also need clear cups. You can find 9 ounce clear cups here, which is what I used.

How To Make Jell-O Fish Tank Cups

Prepare gelatin according to package instructions in a large bowl, then chill in the refrigerator for an hour and a half.

Blue gelatin in a large bowl from overhead after mixing.

When the blue Jell-O is almost set, stir it well with a spoon or spatula. This will break up the gelatin and creates a “bubbles in the water” look. Return to the refrigerator to chill until fully set, about thirty minutes.

Stirring blue gelatin in a bowl from overhead to make bubbles.

Divide the Nerds candy evenly between the six cups. Add the blue Jell-O evenly to each cup.

Nerd candies in four clear cups from overhead.

Place one Swedish fish down into the center of each cup to look like the fish is swimming. Put another fish on the top of the Jell-O if desired.

Four cups full of blue gelatin with a red swedish fish on top of each cup from overhead. More candies are laying around the counter.

Serve immediately or chill until ready to serve, enjoy!

Variation Ideas

Use Other Ocean Themed Gummies– Sharks, other colors of fish, lobsters, you can find all kinds of fun ocean shaped gummies to add to your treat.
Make The Gelatin Lighter Blue– Try using a light shade of Jell-O and adding blue food coloring until you get your desired blue or aqua color.
Make It Pudding– You could use a vanilla pudding in place of gelatin, and make it blue with blue food coloring. Then place the candy fish near the edge of the container so you can still see them as the pudding is not see through.
Try Mason Jars– You can skip the plastic cups and use clear small mason jars or other

How Long Will Mini Fish Tank Jell-O Cups Last?

These fun dessert cups can be assembled the night before. You can make the blue gelatin can be made ahead and will last for about seven days. I recommend not assembling the candies with gelatin more than twenty-four hours in advance as the candies can start to change texture.

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