Terraria Map
Stats
| Type | Fishing |
|---|---|
| Rarity | Blue |
| Bait power | 20 |
| Buy price | 17 gold 50 silver |
| Sell price | 3 gold 50 silver |
Used in 1 recipe
| Makes | Ingredients | At | |
|---|---|---|---|
 Blue Jellyfish Jar | 1 × Blue Jellyfish, 1 × Bottled Water | By hand |
Subterranean retrieval and containment
The Blue Jellyfish is an aquatic creature obtained by casting a fishing line into water pools located in the Underground and Cavern layers. Once pulled to shore, it functions as an item in the player's inventory rather than a hostile swimming monster. Players can combine it with an empty Bottle to manufacture a Blue Jellyfish Jar that displays an animated swimming pet inside glass.
Cavern angling utility and vendor profitability
While possessing 20% bait power, using this creature as tackle is rarely economical. Selling one to any town vendor yields 3 gold 50 silver, making it one of the most profitable catches available during early underground spelunking expeditions. Players seeking bait are better served using basic worms, reserving their caught jellyfish for market trades or furniture decorations to fund expensive early NPC purchases.
Trivia
- Despite swimming in deep subterranean waters, it shares identical sell values with its oceanic pink sibling.
- Unlike hostile jellyfish enemies, this caught creature cannot shock or damage the character.