The Fishing Event update added one of the most content-packed systems ever introduced in Steal a Brainrot.
The Aquatic Index brings twenty-five new brainrots spread across Rare, Epic, Legendary, Brainrot God, and Secret tiers.
Every creature belongs to the aquatic family, and collecting twenty three of them unlocks the Aquatic Base as a permanent reward.
The index is built around the Fishing Event, where players cast rods into flooded waters to reel in aquatic brainrots.
Many of the strongest units in the entire game, including Orcaledon, Eviledon, and Capitano Moby, come from this update. If you are trying to complete the index or simply want the highest earning units, this guide covers everything.
What the Aquatic Index Does
The Aquatic Index tracks every aquatic themed brainrot you have collected. The moment you catch a new aquatic unit during the Fishing Event, it is added to your index.
Collecting twenty three of the twenty five unlocks the Aquatic Base.
Some aquatic units are easy to catch, while others have extremely low spawn rates. Secret tier aquatic creatures are among the rarest in all of Steal a Brainrot.
How to Unlock Aquatic Brainrots
Aquatic brainrots are obtained through the Fishing Event. This event happens every sixty minutes across all servers.
When the event begins, the map floods with neon water and a temporary fishing shop appears. You can buy rods, cast your line, and pull aquatic brainrots until the event ends.
Your fishing rod determines your cast luck. Better rods improve your chances of pulling rare and Secret aquatic units.
All Aquatic Brainrots and Their Earnings in Steal a Brainrot
Below is the complete Aquatic Index list with rarity and earnings.
These values reflect the base income each unit generates per second.
| Brainrot | Rarity | Earnings per second |
|---|---|---|
| Trippi Troppi | Rare | 15 |
| Trulimero Trulicina | Epic | 215 |
| Bananita Dolphinita | Epic | 150 |
| Blueberrinni Octopusini | Legendary | 1000 |
| Tralalero Tralala | Brainrot God | 50,000 |
| Orcalero Orcala | Brainrot God | 100,000 |
| Tralalita Tralala | Brainrot God | 100,000 |
| Trippi Troppi Troppa Trippa | Brainrot God | 175,000 |
| Crabbo Limonetta | Brainrot God | 235,000 |
| Los Orcalitos | Brainrot God | 235,000 |
| Orcalita Orcala | Brainrot God | 240,000 |
| Squalanana | Brainrot God | 250,000 |
| Belula Beluga | Brainrot God | 290,000 |
| Tentacolo Tecnico | Brainrot God | 292,500 |
| Extinct Tralalero | Secret | 450,000 |
| Los Tralaleritos | Secret | 500,000 |
| Zombie Tralala | Secret | 500,000 |
| Boatito Auratito | Secret | 525,000 |
| Las Tralaleritas | Secret | 650,000 |
| Graipuss Medussi | Secret | 1,000,000 |
| Tralaledon | Secret | 27,500,000 |
| Los Primos | Secret | 31,000,000 |
| Eviledon | Secret | 31,500,000 |
| Orcaledon | Secret | 40,000,000 |
| Capitano Moby | Secret | 160,000,000 |
Understanding the Rarity Breakdown
Rare, Epic, and Legendary
These brainrots are the easiest to catch. They help fill your index early and give steady mid-tier earnings.
Brainrot God
This group forms the bulk of the aquatic event. They have strong earnings and decent spawn chances, especially with better rods.
Secret Tier
These are the most powerful aquatic brainrots.
Some, like Eviledon and Los Primos, have extremely low spawn rates.
Capitano Moby, earning one hundred sixty million per second, is the strongest aquatic brainrot and one of the hardest to obtain.
SEE ALSO:
When the Fishing Event Happens
The Fishing Event runs every sixty minutes.
When it starts:
• the map gets flooded
• a fishing shop appears
• rods become available
• aquatic brainrots begin spawning
To reel in a catch, cast your rod and tap repeatedly when the meter appears. Your avatar will pull the aquatic unit into your base if space is available.
How Many Brainrots Are in the Aquatic Index
There are twenty five aquatic brainrots in total.
You must collect twenty three of them to unlock the Aquatic Base.
Which Aquatic Brainrot Is the Best
Capitano Moby is the strongest aquatic brainrot with one hundred sixty million cash per second.
Its spawn rate is extremely low, making it one of the toughest units to obtain.
Final Words
The Aquatic Index is one of the best progression systems in Steal a Brainrot. It introduces a long list of aquatic themed brainrots, a unique hourly Fishing Event, and the Aquatic Base reward for dedicated collectors.
Whether you are hunting Secret tier units like Orcaledon and Eviledon or aiming for the legendary Capitano Moby, finishing the index is one of the most rewarding parts of the game.
Abhigyan identifies himself as a tech geek, gaming cognoscenti, and also a connoisseur of music. Unidentified and mysterious phenomena never fail to gather his undivided attention. When not reading about bizarre and perplexing entities across the Universe, he can often be found cheering for his favorite teams in Football.