Roblox Abyss All Fish in Ancient Sands (March 2026) Complete Guide

Welcome to the ultimate guide for completing your Ancient Sands Bestiary in Roblox Abyss! If you’re ready to dive into one of the most challenging yet rewarding regions in the game, you’ve come to the right place. The Ancient Sands biome is where the real adventure begins – featuring 9 unique fish species, aggressive wildlife, and the legendary Ancient Shark mini-boss that will test your skills to the limit.

I’ve spent countless hours exploring these sandy depths (and getting eaten by sharks more times than I care to admit), and I’m here to share everything you need to know to complete your 100% Bestiary in Ancient Sands. Whether you’re a seasoned angler or just starting your journey, this comprehensive guide will help you master this mid-game region with confidence.

Quick Reference: Ancient Sands Fish Overview

Rarity	Fish Count	Difficulty	Special Requirements
Common	3 species	Easy	Basic gear
Uncommon	3 species	Medium	Air Rifle Gun
Rare	2 species	Hard	Advanced weapons
Legendary	1 species	Expert	Maximum preparation

Essential Gear Preparation

Minimum Requirements Before Diving

Before you even think about exploring the Ancient Sands, you need to understand this crucial fact: this region will destroy you with starter gear. I learned this the hard way after multiple failed dives and wasted oxygen tanks.

Required Equipment:

• Minimum Oxygen Tank: Pufferfish Tube (or better)
• Minimum Weapon: Air Rifle Gun
• Recommended: Advanced oxygen tubes for extended exploration

Why These Requirements Matter: The Ancient Sands biome starts at depths around 180 meters, and the pressure alone will crush basic equipment. Plus, the fish here have significantly higher HP pools than their shallow-water cousins. Your starter spear won’t even scratch these armored species.

Pro Tips for Gear Optimization

From my extensive experience in these waters, I recommend investing in upgraded equipment as soon as possible. The Pufferfish Tube gives you just enough depth capability to reach the sea floor, but for serious farming sessions, you’ll want better tubes. The Air Rifle Gun is your minimum entry point, but if you’re planning to hunt the Ancient Shark, consider upgrading to more powerful weapons for faster kills.

Complete Ancient Sands Bestiary: All 9 Fish Species

Common Fish Species (Easy to Catch)

1. Sand Darter

The Sand Darter is your introduction to Ancient Sands fishing. These small, quick-moving fish blend perfectly with the sandy bottom, making them challenging to spot at first glance.

Characteristics:

• Size: Small (15-25 cm)
• Behavior: Skittish, buries in sand
• Best Time: Any time
• Depth: 180-220 meters
• Preferred Bait: Basic worms

Catching Strategy: I’ve found that slowly approaching from above works best. These fish have excellent peripheral vision, so sudden movements will send them diving into the sand.

2. Ancient Guppy

Don’t let the name fool you – these aren’t your average aquarium guppies. Ancient Guppies have evolved to survive the harsh conditions of the deep sands.

Characteristics:

• Size: Medium (25-35 cm)
• Behavior: Schooling fish
• Best Time: Dawn/Dusk
• Depth: 190-230 meters
• Preferred Bait: Small crustaceans

Catching Strategy: Look for schools near rock formations. Use your Air Rifle Gun for quick catches, as these fish move in coordinated patterns and can escape easily.

3. Sand Sturgeon

The Sand Sturgeon is one of the larger common species, offering a decent challenge for newcomers to Ancient Sands.

Characteristics:

• Size: Large (40-60 cm)
• Behavior: Bottom-dwelling, slow movement
• Best Time: Night
• Depth: 200-240 meters
• Preferred Bait: Large worms

Catching Strategy: These fish are relatively easy to spot due to their size, but they require patience. Wait for them to settle before making your move.

Uncommon Fish Species (Medium Difficulty)

4. Desert Pufferfish

These inflated beauties are more dangerous than their shallow-water relatives. Their spines are sharper, and their temper is shorter.

Characteristics:

• Size: Medium (30-45 cm)
• Behavior: Defensive, inflates when threatened
• Best Time: Day
• Depth: 210-250 meters
• Preferred Bait: Algae-based bait

Catching Strategy: Approach slowly and avoid sudden movements. When they inflate, give them space to deflate before attempting to catch them.

5. Scorpionfish

The Scorpionfish is where Ancient Sands starts showing its teeth. These aggressive predators will actually fight back when threatened.

Characteristics:

• Size: Medium-Large (35-50 cm)
• Behavior: Aggressive, territorial
• Best Time: Any time
• Depth: 220-260 meters
• Preferred Bait: Live bait

Catching Strategy: Be prepared for a fight! These fish have venomous spines and will attack if provoked. Keep your distance and use your Air Rifle Gun effectively.

6. Sand Ray

Sand Rays are majestic creatures that glide through the water with eerie grace. They’re not aggressive but can be tricky to catch due to their flat bodies and sand camouflage.

Characteristics:

• Size: Large (50-80 cm)
• Behavior: Passive, bottom-dwelling
• Best Time: Dusk
• Depth: 230-270 meters
• Preferred Bait: Bottom-dwelling creatures

Catching Strategy: Look for their distinctive shape against the sandy bottom. They’re most active during twilight hours when they hunt for food.

Rare Fish Species (Hard to Catch)

7. Ancient Swordfish

The Ancient Swordfish is one of the most prized catches in Ancient Sands. These powerful predators require advanced techniques and equipment.

Characteristics:

• Size: Very Large (80-120 cm)
• Behavior: Highly aggressive, fast swimmer
• Best Time: Dawn
• Depth: 240-280 meters
• Preferred Bait: Large live fish

Catching Strategy: This is where you need upgraded weapons. The Ancient Swordfish can damage basic equipment and will put up a serious fight. I recommend using advanced rifles and having backup oxygen.

8. Crystal Grouper

The Crystal Grouper is a mysterious species that seems to have crystalline formations on its scales, making it both beautiful and dangerous.

Characteristics:

• Size: Large (60-90 cm)
• Behavior: Ambush predator
• Best Time: Night
• Depth: 250-290 meters
• Preferred Bait: Specialized crystal bait

Catching Strategy: These fish are masters of camouflage and can be nearly invisible against the sandy bottom. Look for the slight glimmer of their crystalline scales.

Legendary Fish Species (Expert Level)

9. Ancient Shark (Mini-Boss)

The crown jewel of Ancient Sands fishing – the legendary Ancient Shark. This isn’t just a fish; it’s a mini-boss that requires maximum preparation and skill.

Characteristics:

• Size: Massive (200-300 cm)
• Behavior: Extremely aggressive, territorial
• Best Time: Random spawn events
• Depth: 260-300 meters
• Preferred Bait: Doesn’t matter – it hunts you!

Catching Strategy: This requires a dedicated guide section:

How to Defeat the Ancient Shark Mini-Boss?

Preparation Phase

Before attempting the Ancient Shark, you need:

• Maximum Tier Oxygen Tube
• Heavy Weaponry (not basic rifles)
• Healing Items
• Backup Oxygen Tanks
• Team Members (if possible)

Battle Strategy

1. Phase 1: The shark will circle and test your defenses
2. Phase 2: Aggressive attacks with increased damage
3. Phase 3: Desperate attacks with area damage

Pro Tips:

• Aim for the gills and underbelly for maximum damage
• Use the environment to your advantage – hide behind rock formations
• Time your attacks between its charge attacks
• Never run out of oxygen during the fight

Advanced Fishing Techniques

Environmental Awareness

The Ancient Sands biome is not just about catching fish – it’s about surviving. Here are crucial environmental factors:

Pressure Zones:

• Shallow Zone (180-220m): Common fish territory
• Medium Zone (220-250m): Uncommon fish hunting grounds
• Deep Zone (250-300m): Rare and Legendary fish domain

Weather Effects:

• Clear Waters: Best visibility for spotting rare fish
• Sandstorms: Reduced visibility but increased fish activity
• Current Changes: Affects fish movement patterns

Time-Based Fishing Strategies

Different fish species have optimal hunting times:

Dawn Period (5 AM – 7 AM):

• Ancient Guppy activity peaks
• Ancient Swordfish hunting time

Daylight Hours (7 AM – 6 PM):

• Desert Pufferfish most active
• Good visibility for general fishing

Dusk Period (6 PM – 8 PM):

• Sand Ray hunting time
• Increased overall fish activity

Night Hours (8 PM – 5 AM):

• Sand Sturgeon feeding time
• Crystal Grouper becomes active

Common Mistakes to Avoid

After extensive time in Ancient Sands, I’ve seen many players make the same mistakes. Here’s what to avoid:

Gear-Related Mistakes

1. Underestimating oxygen requirements – Always bring backup tanks
2. Using weak weapons – You’ll waste time and lose catches
3. Not repairing equipment – Broken gear at depth is fatal

Strategy Mistakes

1. Rushing catches – Patient approach yields better results
2. Ignoring environmental factors – Weather and time matter
3. Not learning fish patterns – Each species has unique behaviors

Combat Mistakes

1. Underestimating aggressive fish – Scorpionfish can kill unprepared players
2. Poor positioning against Ancient Shark – Get cornered and you’re done
3. Not using healing items – Don’t wait until you’re almost dead

Equipment Upgrade Path

Progression Timeline

Early Ancient Sands (First 5 hours):

• Pufferfish Tube
• Air Rifle Gun
• Basic bait collection

Mid Ancient Sands (5-15 hours):

• Advanced oxygen tubes
• Upgraded weapons
• Specialized bait recipes

Expert Ancient Sands (15+ hours):

• Maximum tier equipment
• Heavy weaponry
• Ancient Shark hunting gear

Cost-Effective Upgrades

Based on my experience, here’s the most efficient upgrade path:

1. Oxygen Tube First: Depth capability is crucial
2. Weapon Second: Damage matters for tougher fish
3. Bait Third: Specialized bait increases catch rates
4. Accessories Last: Quality of life improvements

Community Resources and Updates

Staying Current

The Roblox Abyss developers frequently update the game, and Ancient Sands content can change. Here’s how to stay updated:

Official Sources:

• Follow the game’s official social media accounts
• Join the official Discord server
• Check the Roblox group regularly

Community Resources:

• Reddit communities for strategy sharing
• YouTube guides for visual learners
• Wiki pages for detailed statistics

Recent Changes March 2026

Based on the latest updates, there have been some changes to Ancient Sands:

• Spawn rate adjustments for rare fish
• New bait types introduced for Crystal Grouper
• Ancient Shark AI improvements making the fight more dynamic

Frequently Asked Questions

Q: What’s the minimum level required for Ancient Sands?

A: While there’s no strict level requirement, I recommend being at least mid-game level with decent equipment before attempting Ancient Sands. The Pufferfish Tube and Air Rifle Gun are absolute minimums.

Q: Can I solo the Ancient Shark?

A: Technically yes, but it’s extremely difficult. I recommend attempting it solo only after you’ve mastered all other fish in the area and have maximum tier equipment.

Q: How long does it take to complete the Ancient Sands Bestiary?

A: For an average player, expect 15-25 hours of dedicated fishing. Experienced players might complete it in 10-15 hours. The Ancient Shark alone can take multiple attempts.

Q: Are there seasonal effects in Ancient Sands?

A: Yes! During special events, some fish have increased spawn rates, and there are sometimes exclusive variants available. Keep an eye on official announcements.

Q: What’s the most profitable fish in Ancient Sands?

A: The Ancient Shark gives the most rewards, but the Crystal Grouper and Ancient Swordfish are also highly profitable for regular farming.

Q: Can I fish in Ancient Sands with friends?

A: Absolutely! In fact, I recommend it. Having teammates makes catching aggressive fish easier and the Ancient Shark fight much more manageable.

Conclusion

Completing the Ancient Sands Bestiary in Roblox Abyss is one of the most rewarding achievements in the game. From the humble Sand Darter to the mighty Ancient Shark, each of these 9 fish species offers unique challenges and rewards.

Remember that patience and preparation are your best tools in these sandy depths. The Ancient Sands doesn’t forgive mistakes, but it generously rewards skilled and persistent anglers. Whether you’re here for the 100% Bestiary completion, the thrill of hunting legendary fish, or the valuable rewards, this guide has given you everything you need to succeed.

Keep this guide bookmarked for reference, and don’t forget to check for updates as the game evolves. The developers are always adding new content, and Ancient Sands might see even more fish species in future updates.

Happy fishing, and may your oxygen tanks never run empty in the depths of Roblox Abyss Ancient Sands!