Game passes: what is worth buying
Five passes are on sale right now and two of them touch every dive: 2x Money (249 R$) doubles pet payouts, and 2x Fat (249 R$) doubles the weight that gates your depth. 2x Luck and -50% Grow Time are second-wave buys.
Seven passes exist on the Harpoon a Fish store page; five of them are actually purchasable today. Here is what each one changes, checked against the store entries on 17 October 2026.
The five live passes
| Pass | Price | What the store page says it does | Verdict |
|---|---|---|---|
 2x Fat | 249 R$ | Doubles the weight you gain, which is the stat that gates how deep you can sink. | Strong buy |
| ![2x Money [PERMANENT] icon](../../assets/passes/pass-2006630611.png) 2x Money [PERMANENT] | 249 R$ | Doubles the cash your aquarium pets produce - it pays for itself faster than anything else on this list. | Best value |
 +10 Bag | 79 R$ | Adds ten bag slots and stacks with VIP, so one dive can carry a much better haul home. | Cheap and useful |
 2x Luck | 199 R$ | Doubles the chance of a mutation when you harpoon a fish - a rarity buy, not an income buy. | For index chasers |
| ![-50% Grow Time [PERMANENT] icon](../../assets/passes/pass-2005196559.png) -50% Grow Time [PERMANENT] | 349 R$ | Halves pet growth time. The most expensive live pass; it compounds with the aquarium's own upgrade levels. | Late buy |
Prices are in Robux and were on the store page on 17 October 2026. Roblox regional pricing varies, so treat the numbers as the list price, not your local price.
The two passes that are off sale
| Pass | Effect | Status |
|---|---|---|
 2x XP | Double XP from harpooning and from the treasure chest. Currently not purchasable. | Unavailable |
 VIP | 20% less grow time, 1.5x cash, +5 bag slots and a VIP nametag. Currently not purchasable. | Unavailable |
Off sale does not mean the pass is gone from the game - players who own them keep the effect. It means you cannot buy them in this build.
Reading the pass list in the right order
Two passes change what happens in a dive, and three change how fast numbers move outside it. If you are buying one thing:
- 2x Money doubles your aquarium income, which is the payout that runs even while you are doing something else. For most players it is the first pass worth buying.
- 2x Fat doubles weight gain, and weight is the depth gate. If your dives keep stalling in the same band, this is the pass that moves you past it.
- +10 Bag at 79 R$ is the cheapest meaningful upgrade on the page: ten more slots is ten more fish per dive, forever.
- 2x Luck only matters if you are chasing mutations and index entries rather than cash.
- -50% Grow Time at 349 R$ is the most expensive live pass, and its value depends entirely on how many pets you are already growing. Buy it after your aquarium is full, not before.
What no pass does
Nothing on this list unlocks a band, a fish or a badge. Index progress, records and the named-creature badges are all earned by diving - the passes only change how fast the supporting economy moves. That is worth remembering before you buy: 2x Money makes the aquarium better, and the aquarium does not catch anything for you.
Buying decisions, in one line each
- Free player who dives a lot: +10 Bag, then nothing.
- Player with a full aquarium: 2x Money, then -50% Grow Time.
- Player stuck at one depth band: 2x Fat.
- Player chasing a rare index: 2x Luck.
If you are still deciding whether the game is worth any Robux at all, play the depth loop for a session first. It is the system the passes serve, and it is free.
