How to Get Pickaxe for Crystallized Mutation in Fish It (March 2026)

Updated by Tanvi Mukherjee
January 20, 2026
RobloxGaming

Welcome to the most comprehensive guide on getting the Pickaxe for Crystallized Mutation in Fish It! If you’re looking to dominate the Crystal Depths update and maximize your fishing profits, you’ve come to the right place. This guide will walk you through every step of obtaining the coveted pickaxe, from accessing the Crystal Depths to farming valuable crystals for the Crystallized Mutation. Whether you’re a seasoned player or just starting your endgame journey, I’ll share all the secrets, tips, and strategies you need to succeed.

Requirement	Details	Time/Cost
Advanced Diving Gear	Purchase from Pirate Cove	1,000,000 Coins
Location Access	Crystal Depths via Pirate Cove boat	Immediate with gear
Main Quest	Find Hank’s Diary	1-5 hours fishing
Diary Catch Rate	Special fishing item	1 in 50,000 chance
Pickaxe Use	Mine glowing crystals	Instant with tool
Event Duration	Crystal Depths available	Until January 25, 2026

The Crystal Depths update, released on January 18, 2026, has revolutionized Fish It gameplay with new rare fish, valuable mutations, and exciting quests. The pickaxe is your key to unlocking the full potential of this underwater paradise, allowing you to farm crystals that boost your chances of getting the lucrative Crystallized Mutation. Let’s dive in and get you equipped with the knowledge and tools you need!

Step 1: Accessing Crystal Depths – The Advanced Diving Gear

Location and Purchase

Before you can even think about getting a pickaxe, you need to reach the Crystal Depths. This requires the Advanced Diving Gear, one of the most expensive utility items in Fish It. Here’s exactly where to find it:

Head to Pirate Cove Island – This is the main hub for the Crystal Depths update
Locate the small wooden crate near the lake where you descend to Crystal Depths
Find the red-colored Advanced Diving Gear sitting above the crate (note: this is different from the yellow regular Diving Gear)
Purchase for 1,000,000 Coins – Yes, you read that right!

Strategic Investment Consideration

Here’s a pro tip that many guides miss: invest in better fishing rods before buying the Advanced Diving Gear. While the diving gear is essential, having superior rods like the Element Rod or Diamond Rod will significantly increase your chances of catching the rare diary and valuable fish in Crystal Depths. The choice between an Astral/Hazmat Rod versus the diving gear can be tough, but better rods will pay dividends in the long run.

Using the Diving Gear

Once purchased:

Equip the Advanced Diving Gear from your hotbar
Head to the boat in the middle of the lake in Pirate Cove
Look for the “Descend” option when you get close to the long pole next to the boat
Press E on PC (or use the interact button on mobile) to slide down the pole
Enjoy the descent – you’ll reach Crystal Depths after a few seconds without losing health

Step 2: Finding Hank and Starting the Quest

Locating Hank NPC

Once you arrive in Crystal Depths, finding Hank is crucial:

Position: Hank is located on the right side of the Crystal Depths area
Landmark: He’s standing next to a massive Crystal formation
Navigation: Swim across the stream from Dorian (another questgiver) to find Hank
Appearance: Look for the distinctive NPC near the glowing crystal formations

Understanding the Quest

Hank will give you a simple but challenging quest: find his mysterious diary. This isn’t just any regular fishing task – it’s one of the rarest catches in the game!

Step 3: The Mysterious Diary – The Ultimate Fishing Challenge

Fishing Location and Strategy

The diary can only be caught in specific water pools within Crystal Depths:

Position yourself near the pond area right next to Hank
Use your best fishing rod – Element Rod or Diamond Rod recommended
Cast your line in the designated fishing spot
Prepare for a long wait – this requires serious patience!

Catch Rate and Time Investment

Here’s the reality check: the diary has a catch rate of 1 in 50,000. This means:

Expected time: 1-5 hours of continuous fishing (depending on your luck)
Luck boosters: Use any luck-boosting items you have to speed up the process
Persistence is key: Don’t give up – many players catch it within the first few hours

Pro Tips for Faster Success

Based on my research and community feedback:

Fish during high-luck events if possible
Use the best rod available to maximize your chances
Stay focused – the diary can appear at any moment
Take breaks but don’t switch locations – stay near Hank’s pond

Step 4: The Critical Step – Turning in the Diary

The Most Common Mistake

This is where 90% of players fail and get frustrated. You MUST hold the diary in your hand when talking to Hank. Simply having it in your inventory won’t work!

Step-by-Step Turn-In Process

Catch the diary using your fishing rod
Open your inventory immediately
Equip the diary to your hand/hotbar
Walk back to Hank while still holding the diary
Talk to Hank – he should recognize the diary and offer the pickaxe
Complete the trade and receive your pickaxe!

Troubleshooting

If Hank doesn’t give you the pickaxe:

Double-check that you’re actually holding the diary (not just in inventory)
Re-equip the diary and try again
Make sure you’re talking to the right NPC (Hank, not Dorian)

Step 5: Using Your Pickaxe for Crystal Farming

Identifying Mining Targets

Not all crystals are mineable:

Look for GLOWING crystals – these are the only ones you can mine
Regular crystals cannot be harvested
Glowing crystals respawn after being mined, allowing continuous farming

Mining Process

Equip your pickaxe from your inventory
Approach a glowing crystal in Crystal Depths
Press and hold E (PC) or the interact button (mobile)
Collect the Cave Crystals that drop
Move to the next glowing crystal

Crystal Locations

Glowing crystals are scattered throughout Crystal Depths:

Around the main area near Hank and Dorian
Inside cave areas
Near the spawn point
Along the underwater pathways

Step 6: Understanding Crystallized Mutation

What Are Crystals Used For?

The Cave Crystals you mine function like powerful potions:

Consumable items with limited-time effects
Boost Crystallized Mutation chances when used
Duration: Effects last for a few minutes per crystal
Stackable: Collect multiple crystals for extended farming sessions

Fishing with Crystal Boost

Use a Cave Crystal before fishing
Fish normally in any water pool

Increased chances of getting Crystallized Mutation
Higher fish values – Crystallized Mutation increases fish value significantly

Reapply crystals as the effect wears off

Mutation Benefits

The Crystallized Mutation is incredibly valuable:

Value multiplier: Increases fish worth by 3x
Rare status: Makes your catches more prestigious
Trading value: Highly sought after in the community
Collection completion: Essential for serious collectors

Bonus Quest: Dorian’s Coral Lantern

While you’re in Crystal Depths, don’t miss Dorian’s optional quest:

Quest Requirements

Collect 30 coral reefs from around Crystal Depths
Locations: Under the dock, near the diary pond, inside cave areas
Respawn rate: Corals respawn after some time

Farming Strategy

Expect 7-10 corals per dive initially
Return to surface and fish for 10 minutes
Come back for more coral spawns
Complete in multiple sessions for efficiency

Reward

Coral Lantern skin – cosmetic item for your lantern
Visual upgrade – changes your lantern’s appearance
Prestige item – shows you’ve completed Crystal Depths content

Advanced Tips and Strategies

Money Management

Given the 1,000,000 Coin cost for Advanced Diving Gear:

AFK fish in high-value spots to save up
Sell valuable fish from other locations
Participate in events for bonus coins
Consider trading with other players for better deals

Rod Progression

For optimal Crystal Depths success:

Start with mid-tier rods if you’re on a budget
Upgrade to Element Rod as soon as possible
Aim for Diamond Rod for maximum efficiency
Consider Astral Rod if you can afford it

Time Management

Event deadline: Crystal Depths content ends January 25, 2026
Plan your sessions around the diary fishing grind
Stock up on crystals before the event ends
Complete all quests while the area is available

Community Resources

Stay updated with the latest information:

Official Discord: discord.gg/fishit
Twitter updates: @FishitROBLOX
Community guides: Check Reddit r/RobloxFishIT
Wiki resources: Fish It! Fandom Wiki

Frequently Asked Questions

How long does it really take to get the pickaxe?

Most players report 2-4 hours total: 30 minutes for setup and 1-3 hours fishing for the diary. Your luck and fishing rod quality significantly impact this time.

Is the pickaxe worth the investment?

Absolutely! The ability to farm crystals for Crystallized Mutation can triple your fishing income. Most players recoup their 1,000,000 Coin investment within a few hours of crystal farming.

Can I get the diary in other locations?

No, Hank’s diary can only be caught in the specific water pools within Crystal Depths, near Hank’s location.

What happens if the event ends before I finish?

The Crystal Depths is scheduled to end on January 25, 2026. Make sure to complete all quests and stock up on crystals before this date.

Do crystals expire?

Cave Crystals don’t expire in your inventory, but their buff effect is time-limited when used. Stock up while you can!

Can I trade the pickaxe or crystals?

The pickaxe is a quest reward and typically untradeable. However, Cave Crystals and Crystallized fish can often be traded with other players.

Conclusion

Getting the Pickaxe for Crystallized Mutation in Fish It is a challenging but incredibly rewarding journey. From the massive 1,000,000 Coin investment to the patience-testing diary fishing, every step prepares you for the endgame content that makes Fish It truly special.

Remember these key takeaways:

Invest in good rods before buying diving gear
Hold the diary in hand when turning it in (this is crucial!)
Farm glowing crystals efficiently for maximum profit
Complete Dorian’s quest for the bonus Coral Lantern
Act fast – the Crystal Depths event ends January 25, 2026

The Crystallized Mutation you’ll gain access to will transform your fishing experience, tripling the value of your catches and opening up new trading opportunities. Whether you’re a completionist, a profit-focused player, or someone who loves exploring new content, the pickaxe is your key to unlocking Fish It’s most lucrative update yet.

Bookmark this guide and check back regularly for updates. The Crystal Depths meta is still evolving, and I’ll keep this guide fresh with the latest strategies and community discoveries. Happy fishing, and may your diary catch be swift!