Secret fish are the rarest and most valuable catches in Fish It! (Roblox). These unique species sell for huge amounts of coins, help complete the Deep Sea Quest for the Ghostfinn Rod, and unlock brag-worthy achievements in your Index.
Catching a secret fish requires the right combination of rod, bait, enchantments, and timing — this guide breaks down exactly what you need to know to find every secret fish across all islands, along with the best methods to increase your chances.
What Are Secret Fish?
Secret fish are the highest rarity tier in Fish It, above Mythic and Legendary. They appear only in specific islands and have extremely low spawn rates, often between 1 in 250,000 to 1 in 3,500,000 casts depending on the region.
Each island has one or more Secret fish hidden in certain areas. To hook one, you must meet strict requirements:
- Use a high-tier rod (at least Midnight or higher).
- Equip advanced bait like Aether or Singularity.
- Apply Luck-enhancing enchants such as Leprechaun II or Empowered.
- Fish during Luck events or when weather bonuses are active.
→ Read more about enchants in the Enchant Guide
→ Learn about fishing events and bonuses in the Money Guide
Best Rods for Catching Secret Fish
To catch a Secret fish, you must use a rod capable of hooking high-weight fish. Lower-tier rods simply cannot pull them in. Below is a progression list of recommended rods for secret fishing:
| Rod | Type | Why It Works |
|---|---|---|
| Midnight Rod | Minimum Requirement | Provides 100% Luck boost and steady control. |
| Lucky Rod | Mid-Tier Option | Strong balance of cost and Luck; solid for early secret hunting. |
| Ares / Astral Rod | High-Tier Rods | Huge Luck bonuses ideal for rare fish farming. |
| Angler Rod | Late Game | Excellent stats for Mythic and Secret catches. |
| Ghostfinn Rod | Best for Secrets | 610% Luck, 118% speed, high weight cap — top-tier for Secret fish. |
| Element Rod | Ultimate Choice | Best rod in the game; provides unmatched Luck and secret catch consistency. |
To make the most of your rod, always attach at least one Leprechaun enchant to maximize your Luck.
→ Explore rod details in the Rod Progression Guide
Best Bait for Secret Fish
Your bait (or bobber) plays a huge role in determining whether a Secret fish will bite. Basic baits don’t provide enough Luck or Mutation Chance to trigger a Secret spawn. You’ll need high-end options, typically purchased from the Traveling Merchant or advanced islands.
Here’s the recommended bait progression for secret hunting:
| Bait | Luck Bonus | Mutation Chance | Notes |
|---|---|---|---|
| Chroma Bait | +150% | +5% | Minimum viable option for secrets. |
| Corrupt Bait | +160% | +10% | Boosts shiny and mutation chance. |
| Aether Bait | +180% | +15% | Excellent mid-game bait for Mythic & Secret fish. |
| Dark Matter Bait | +200% | +20% | Strong hybrid bait for events and rare fish. |
| Singularity Bait | +250% | +25% | Best bait in the game; only found in Traveling Merchant’s shop. |
Combine your bait with Luck potions from the Scientist NPC at Stingray Shores for even greater efficiency.
→ See full bait stats in the Baits & Bobbers Guide
Best Enchantments for Secret Fish
Secret fishing is heavily influenced by Luck-based enchants. The following are must-haves if you’re serious about catching rare fish:
- Leprechaun I / II: +30% to +50% Luck. Essential for rare encounters.
- Empowered: +20% Luck and +10% Reel Speed. Balances efficiency and rarity.
- Storm Hunter: +80% Luck during rain — perfect for weather-based boosts.
- Big Hunter: Helps hook larger fish, increasing overall catch value.
Apply enchants using Enchant Stones found while fishing or through the Esoteric Depths Altar.
→ Learn how to apply enchants in the Enchant Guide
→ For farming Enchant Stones, visit the Esoteric Depths Section
Secret Fish Locations by Island
Each island in Fish It has one or more Secret fish hidden in specific areas. These locations may require special rods, diving gear, or completion of certain quests.
Below is a breakdown of where you can find them:
1. Fisherman Island (Starter Area)
- Secret Fish: Orca (1 in 1.5M) and Crystal Crab (1 in 750k)
- Tips: Use at least the Midnight Rod with Chroma Bait. Fish near the cave area where the Stingrays spawn.
- Best Time: Daytime Luck Events or Rainy Weather.
2. Coral Reefs
- Secret Fish: Monster Shark (1 in 2.5M) and Eerie Shark (1 in 250k)
- Tips: Equip Ares Rod or better. Fish near the deep reef trench; high spawn area for Mythics and Secrets.
- Recommended Bait: Aether or Singularity Bait.
3. Lost Isle
- Secret Fish: Robot Kraken (1 in 3.5M), King Crab (1 in 1.2M), Queen Crab (1 in 800k), Kraken (1 in 800k)
- Tips: Requires Scuba Gear and advanced rods (Ghostfinn or higher). Focus on Treasure Room and Sisyphus Statue zones.
- Recommended Enchants: Leprechaun II + Empowered.
4. Tropical Grove
- Secret Fish: Great Whale (1 in 900k)
- Tips: Fish near the open water area using Angler or Ares Rods.
- Recommended Bait: Corrupt or Aether Bait.
5. Ancient Jungle
- Secret Fish: Ancient Relic Crocodile (1 in 245k)
- Tips: Found near temple rivers. You must use Element or Ghostfinn Rod for a chance to catch it.
- Special Requirement: Completing this catch is part of the Element Rod Questline.
→ For full rarity data, visit the Fish Locations Guide
Boosting Your Secret Fish Odds
Secret fishing relies on RNG, but there are several ways to dramatically increase your chances:
1. Use Luck Events and Weather Boosts
Whenever the server runs a 2x Luck Event, secret fish spawn rates effectively double.
Additionally, Rainy Weather (paired with Storm Hunter enchant) adds a massive Luck multiplier.
2. Stack Potions
Buy Luck Potions or L Potions from the Scientist at Stingray Shores. These stack with enchant and bait bonuses.
3. AFK at the Right Spot
The best long-term strategy is AFK fishing during events in zones like:
- Esoteric Depths (for Enchant Stones + Mythics)
- Lost Isle (for Secrets + Quest progress)
Use Auto Fish and recheck every few minutes to avoid disconnects.
4. Keep Equipment Upgraded
Secret fish won’t bite lower-tier rods or baits, no matter how lucky your enchants are.
Before you fish for secrets, make sure your equipment is properly upgraded and enchanted.
→ Read about AFK setups in the Money Guide
Secret Fish and the Ghostfinn Quest
Secret fish aren’t just for profit — they’re also key to unlocking the Ghostfinn Rod, one of the most powerful rods in Fish It.
To obtain it, you must complete the Lost Isle Questline, which includes catching:
- 300 Rare/Epic Fish
- 3 Mythic Fish
- 1 Secret Fish
- Earn 1,000,000 Coins
Successfully catching one Secret fish fulfills the hardest step of this quest, so prioritize Lost Isle farming if you’re chasing Ghostfinn.
→ Learn the full quest steps in the Rod Progression Guide