TUTORIAL: Mermaid Fin Water Marble

Wanna support and spread awareness for Autism this month? Then scroll below for a tutorial on this blue Mermaid Fin water marble design!



Supplies you will need: 3 creamy polishes that dissipate evenly on the water; ;white polish; a small plastic bathroom cup filled with room temperature filtered water; masking tape; toothpicks or orange sticks; paper towels; q-tips; clean-up brush with dish of nail polish remover.

1.) Apply a base coat of white to your nail/s and let that dry. Next rip off a piece of short masking tape and wrap it around your finger near the base of the nail. Rip off a longer piece of masking tape and wrap that around the sides and top of your finger (fingers can be wrapped individually or all at once. You may want to rip all the pieces you are going to use before you begin marbling so you don’t mess up any nails in the process)

2.) Open all the polishes and begin to drop one color after another into the water. Allow the polishes to spread on the surface of the water as you drop each polish. If the first drop of polish doesn’t dissipate to the edges of the cup then simply place the orange stick in water and break the surface tension so the polishes anchor onto the cup.

3.) The amount of rings you want to create will depend on the amount of different polishes you are using as well as how the polishes dissipate in the water. In this marble I used 3 different polishes so I did a ring of each color 5 times. You want to create a nice bull eyes (as pictured above).

4.) Next drag from the center out to the edge of the cup with your toothpick or orange stick and kind of anchor the polish to the sides of the cup. Wipe off the tool you are using on a paper towel so that you can create fine line designs in the water.

5.) Now drag from the center to the opposite side of the cup.

6-10.) Next begin to drag the toothpick from each side of the cup, anchoring the polish onto the cup and wiping it off every time. This will create a nice chevron stripe design.

11.) Now you are going to want to slowly and gently move the cup around so you can easily dip your nail onto one of the “mermaid fins”

12.) Once you have found the nicest fin slowly and gently dip your nail onto the surface and into the water leaving it submerged.

13.) With a toothpick or thicker stick, pick up the excess polish that is on top of the water so that your design is not ruined. Make sure you don’t bring up your finger too early or you will ruin the design. Also make sure you don’t nick your nail on the sides of the cup!

14.) Slowly take out your finger to prevent air bubbles

15.) CAREFULLY take the masking tape off of your finger. Clean around your cuticles and under your nail slowly with the q-tip and cleaning brush. You don’t want to mess up your beautiful design. I like to clean each nail right after I marble it since the polish is still kind of wet which helps to get it off easier.

16.) Let your nails dry for at least 15 minutes, you don’t want any smudges and then apply top coat and let that dry.

Viola! & there you have a beautiful Mermaid Fin Water Marble design for yourself!

Any questions please comment to me here or on Instagram. You can also e-mail me at


5 observations on “TUTORIAL: Mermaid Fin Water Marble
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