Crew Captain Blox Fruits: expand your crew

The Crew Captain sells additional slots for your crew at 2,000 Fragments per unit, with one slot per purchase. You must be the captain to trade with him - a regular member has nothing to negotiate with him. The price never increases, and purchased slots survive a disconnect.

How to get it

Second Sea: at the Graveyard, on one side of the central tower.
Third Sea: at the Great Tree, on the side of a tree to the right of the Kilo Admiral's cave.

What he sells

One additional crew slot for 2,000 Fragments, only one slot per purchase.
Essential condition: you must be the crew captain.
The price remains fixed and does not increase with each purchase.
The slot cap, however, is unclear in the source - see the next section.

The cap, and the source's contradiction

The Fandom first announces that players can have up to 30 slots, then describes a few lines later the refusal message as appearing after purchasing a maximum of fifteen. Both numbers coexist on the same page without being reconciled - verify in-game before spending a large reserve of Fragments on it.

His dialogue

Dialogue	When
"What's up?"	You don't have a crew or don't have enough Fragments
"[You already reached the maximum capacity.]"	You've reached the slot cap while still having 2,000 Fragments

Things to know

Purchased slots do not disappear when you leave the server.
However, if the captain abandons their crew, the paid slots are lost - they do not transfer to another crew.
The source mentions a bug that appeared in July 2024 which allowed exceeding a crew's limit, making the entire Crew Captain system useless. It does not specify whether it has been fixed since.