Key Takeaways
- In Roblox Abyss, Fish Bone drops only while fishing in the Ancient Sands region during special treasure chest events.
- Maximize your chances by filling the main fishing bar to 75% before completing the Treasure Chest bar.
- Fish Bone primarily serves as a quest item for Marcus the Archaeologist, requiring a total of 9 Fish Bones to complete his quests.
- Each quest using Fish Bone offers valuable rewards like money, potions, and geodes, making the effort worthwhile.
Abyss is a popular Roblox experience where deep-sea exploration and fishing become a thrilling survival journey. You will dive into vast ocean depths, catch rare fish, and complete quests while managing oxygen and dodging underwater dangers.
In Abyss, some quest items are far rarer and more confusing to obtain than regular fish, and Fish Bone fits that category. As you progress through the Ancient Sands region, you will encounter quests that require this item. So, here is a complete guide on how to get and use Fish Bone in Roblox Abyss.
How To Get Fish Bone In Roblox Abyss

Fish Bone only drops while fishing in the Ancient Sands region of Abyss. The method works the same way as catching Geodes in other zones, with a key twist. While fishing here, the usual Geode reward sometimes gets replaced with a Fish Bone instead.
During fishing, you will see a Treasure Chest icon appear on the mini-game bar alongside the main progress bar. This shows up about once every five attempts. When it appears, you need to fill the chest’s bar before finishing the main fishing bar, or you get nothing extra.
How To Maximize Fish Bone Chances
To improve your results, you should first fill the main fishing bar to around 75 percent. After that, you need to focus on the Treasure Chest bar until a check mark appears. Then you can return to the main bar and finish the mini-game for a chance at Fish Bone.
How To Use Fish Bone In Roblox Abyss
Fish Bone works mainly as a quest item for Marcus the Archaeologist in Ancient Sands. As you progress through his questline, you will need Fish Bones at several stages.
| Quest Name | Fish Bones Required | Rewards |
|---|---|---|
| Deeper Analysis | 1 | $1,600, Star Shards, Small Oxygen Pods |
| Shifting Evidence | 2 | $3,850, Speed Potion, Basic Oxygen Pods |
| Beyond My Reach | 6 | $7,800, XP Potion, Cactus Geodes, Burger |
To fully complete Marcus’s questline in Roblox Abyss, you will need a total of 9 Fish Bones. As you progress through each stage, you can earn useful rewards like money, oxygen upgrades, potions, keys, and geodes, making the effort well worth it.
Frequently Asked Questions (FAQs)
You can get Fish Bone only by fishing in the Ancient Sands region during special treasure chest fishing events.
The Treasure Chest bar appears roughly once every five fishing attempts in Ancient Sands.
You should fill the main bar to seventy-five percent, then complete the Treasure Chest bar first.
Marcus the Archaeologist in Ancient Sands requires Fish Bones throughout his multi-stage questline.
You will need a total of nine Fish Bones to fully complete Marcus’s entire questline.
Check out Roblox Abyss: All NPC Locations – Complete Map or Roblox Abyss: All Fish Mutations & Multipliers for more Game Geek Fusion!
