How to Get All Royale High Mermaid Tails: Full 2026 Guide

The underwater world of Royale High has undergone a massive transformation, bringing back a fan-favorite feature that players have missed for years. If you are looking to dive deep into the ocean as a mythical creature, understanding how to obtain royale high mermaid tails is essential for any dedicated student at Campus 4. These tails are no longer just simple shop items; they are rewards for dedication, elemental mastery, and exploration.

Whether you are a veteran player who remembers the legacy tails from 2019 or a new student eager to start your first aquatic quest, the current system offers over 114 unique designs. In this comprehensive guide, we will break down the complex quest steps to unlock the Mermaid Treasure Shop, explore the massive inventory of seasonal potions, and provide tips on how to style your royale high mermaid tails for the ultimate siren aesthetic.

The Evolution of Mermaid Tails in Royale High

For a long time, mermaid tails were considered "legacy" items. Originally removed in November 2019 during a shop overhaul, they became rare collectibles that only older accounts could equip. However, the September 2025 update revolutionized this mechanic. Developer callmehbob introduced a new way to become a mermaid through a multi-stage quest located in the new Campus 4 realm.

Unlike the old versions, the modern royale high mermaid tails are highly customizable. They now feature distinct shapes, particle effects, and elemental trails. Community reports suggest that the new system is designed to be inclusive, offering both masculine and feminine versions of every tail, ensuring that every player can find their perfect aquatic look.

Quick Answer To get mermaid tails today, you must complete the "Mermaid Quest" at Campus 4 to unlock the Mermaid Treasure Shop. Once unlocked, you can purchase Mermaid Potions using Diamonds to transform your character.

Step-by-Step Guide: Unlocking the Mermaid Treasure Shop

Unlocking the ability to buy new tails requires completing a specific questline. This quest involves gathering bioluminescence, using elemental magic, and nurturing a "fishling." According to player experience, this process can take about one full in-game day cycle to complete.

Step 1: Find the Mysterious Bottle

Travel to Campus 4. Head past the pool area toward the beach. Look for a set of stairs leading down to the sand. Near a palm tree on the left, you will find a message in a bottle. Picking this up triggers the quest "Follow the verses with your heart open wide."

Step 2: Collecting Bioluminescence

You must wait for nighttime in the game. Once the stars are out, take your empty bottle to the glowing waves. Click the water to fill the bottle with "ocean's light." This step can only be completed when the water is visibly shimmering under the moonlight.

Step 3: The Ritual of Flame

Return to your dorm room. You will need to place the bottle in a circle of three candles.

• Tip: If you don't own candles, the "Haunted Floating Candles" are a budget-friendly option at 250 Diamonds each.
• Place the bottle in the center and extinguish all overhead room lights.

Step 4: Elemental Infusion

Use your elemental magic (Fire, Water, Nature, etc.) on the bottle. This infuses the potion with your specific power. The type of tail you receive at the end of the quest depends on the element you use here.

Step 5: The Dream Weaver Phase

Place the bottle under your pillow and sleep in your dorm bed. You must stay in bed until the "Morning" notification appears. Successfully "protecting" the bottle through the night transforms the liquid into a fishling egg.

Step 6: Nurturing the Fishling

This is the most time-consuming part. You must place the bottle in your school locker. You are required to attend classes (Breakfast, Potion Making, Typing, etc.). Between every class, return to your locker and click the bottle to "give love." Once you have attended enough classes and provided enough care, the fishling will hatch.

Step 7: The Release

Take the hatched fishling back to the Campus 4 ocean and select "Release." A short cinematic will play, and you will be rewarded with your first elemental mermaid tail and the Mermaid Treasure Shop badge.

Navigating the Mermaid Treasure Shop

Once you have completed the quest, the Mermaid Treasure Shop becomes permanently accessible. This shop is unique because its inventory rotates based on the moon cycle and real-world seasons.

Pricing and Tiers

Mermaid Potions are the primary way to get new royale high mermaid tails. These potions range in rarity and price. Community data suggests that prices are randomized within a specific range for each player daily.

• Classic Potions: 15,000 – 20,000 Diamonds. These are simple, elegant designs like "Goldfish" or "Splash."
• Rare Potions: 25,000 – 40,000 Diamonds. These include more detailed patterns like "Jellyfish" or "Tidal Wave."
• Legendary Potions: 45,000 – 65,000+ Diamonds. These are the crown jewels of the collection, such as the "Hibiscus" or "Sky Dolphin" tails.

The Luna Lagoon Cycle

A special realm called Luna Lagoon opens once a month during the full moon. During this time, exclusive accessories and high-tier tails are available for a limited window (usually about 48 hours). If you miss a specific tail, you will have to wait until the next full moon or the corresponding season to find it again in the shop.

Seasonal Tail Collections and Aesthetics

Royale High categorizes its 114 tails into seasonal themes. Each theme matches the overall aesthetic of the game's major updates.

Flowering Season (Spring)

These tails focus on floral patterns and soft pastel colors.

• Classic: Lilac Haze, Dewdrop Showers, Fresh Fern.
• Rare: Peony Party, Lavender Lemonade, Tiger Lily.
• Legendary: Mystic Bouquet, Dandelion Wish, Morning Glory.

Glitterfrost Season (Winter)

Designed for the cold, these tails often feature ice crystals and velvet textures.

• Classic: Evergreen, Sapphire Princess, Silvergale.
• Rare: Ice Fairy Princess, Cold Water Orca, Sugarplum.
• Legendary: Frozen Dream, Frostbite Orca, Nebula.

Eveningfall Season (Autumn/Halloween)

The largest collection, featuring spooky and dark-themed tails.

• Classic: Blood Moon, Poison Apple, Pumpkin.
• Rare: Witchy Siren, Rain Cloud, Haunted Forest.
• Legendary: Whimsy Witch, Ghostly, Vampiric.

Customizing Your Mermaid Look: Accessories

A tail alone doesn't make a mermaid. The Mermaid Treasure Shop also sells 29 unique accessories to complete your transformation. Many of these items are part of larger sets that can be mixed and matched with standard Royale High skirts and bodices.

The Gilded Set

The Gilded Mermaid set is one of the most sought-after collections. Interestingly, the pieces are often separated across different seasons, making it a challenge to complete.

• Gilded Belt: Often found during the Flowering season.
• Gilded Crown: Usually appears during the Everfriend event.
• Gilded Top: A staple of the Glitterfrost shop rotation.

Siren and Pearly Sets

For those who prefer a more traditional "Sea Siren" look, the Siren and Pearly Princess items are essential.

• Siren Arm Fins & Ear Fins: These add a biological mermaid look to your avatar.
• Pearly Princess Necklace & Circlet: These add a touch of royal elegance, perfect for legendary tails like the "Early Royal" tail.

Styling Tip Most new tails come with a "Masculine" and "Feminine" toggle. You can change these in the "Tails" section of your inventory to fit different bodice types.

The Goddess of Triumph Mermaid Tail

There is one exception to the Diamond-based shop system: the Goddess of Triumph Sea of Strength Mermaid Potion. This is currently the only tail that requires Robux to obtain, as it is part of the charity-focused Goddess of Triumph collection.

This tail is considered highly exclusive due to its unique fin shape and the fact that it contributes to real-world causes. Unlike other royale high mermaid tails, this one is not found in the standard Mermaid Treasure Shop rotation and must be purchased through the specific event menu when available.

Legacy and Unobtainable Tails

While the new quest system is the primary way to get tails now, many players still own the "Old" tails from the pre-2019 era. If you have these in your inventory, they are badges of honor. You cannot trade these items, making them some of the rarest sights in the game today.

For more information on official updates and game rules, you can visit the Royale High Roblox Page to see the latest patch notes from callmehbob.

Pro-Tips for Mermaid Tail Collectors

1. Check the Lost and Found: During the quest, your bottle might disappear if you leave the game or reset. Always check the "Lost and Found" tab in your furniture inventory to recover quest items.
2. Elemental Re-entry: You can repeat the quest to get different elemental base tails. If you want a "Water" tail instead of a "Fire" tail, just restart the quest and use the Water element during the infusion step.
3. Diamond Farming: Since legendary tails can cost upwards of 60,000 Diamonds, focus on completing your daily tasks and leveling up in Campus 4 to maximize your currency gain.
4. Wait for the Full Moon: If a tail you want isn't in the shop, don't panic. The inventory changes with the lunar cycle. The rarest items always return during the Luna Lagoon event.

Common Mistakes to Avoid

• Forgetting the Night Cycle: You cannot fill the bottle with bioluminescence during the day. If you try, the bottle will remain empty, and you'll waste time.
• Skipping Classes: During the nurturing phase, you must attend the classes. Simply sitting at your locker won't trigger the "love" prompts needed to hatch the fishling.
• Ignoring the Masculine/Feminine Toggle: If your tail looks "glitchy" with your outfit, check the customization menu. Switching the toggle often fixes clipping issues with different bodices.

Final Thoughts on Royale High Mermaid Tails

The return of royale high mermaid tails has breathed new life into the roleplaying aspects of the game. By moving away from a simple "click and buy" shop to a narrative-driven quest system, Royale High has made the transformation into a mermaid feel like a true achievement. With 114 tails to collect and endless customization options, the depths of the Campus 4 ocean are waiting for you to explore.

Whether you're aiming for the spooky aesthetic of the "Vampiric" tail or the ethereal beauty of the "Dandelion Wish," the journey to becoming a mermaid is one of the most rewarding experiences in the game. Start your quest today, keep your fishling safe in your locker, and prepare to join the ranks of the Royale High sea royalty!

FAQ: Royale High Mermaid Tails

Can I trade mermaid tails in Royale High?

No, royale high mermaid tails are currently non-tradable. This applies to both the legacy tails from 2019 and the new tails obtained through the Mermaid Treasure Shop. You must earn or purchase them yourself.

How do I unlock the Mermaid Treasure Shop?

You must complete the Campus 4 quest, which involves finding a bottle on the beach, collecting bioluminescent water at night, performing a ritual in your dorm, and nurturing a fishling through a full day of school classes.

Why did my mermaid tail disappear?

If you are referring to the legacy tails, they were moved to a specific "Legacy" tab in your inventory. If you are doing the quest, check your "Lost and Found" furniture inventory if your quest bottle goes missing.

What is the most expensive mermaid tail?

Excluding the Robux-exclusive Goddess of Triumph tail, the Legendary potions in the Mermaid Treasure Shop are the most expensive, often costing between 45,000 and 65,000+ Diamonds depending on the daily price roll.