Pull a Lucky Fish Diving, Crystals & Enchanting Guide
Turn sunken items into crystals, use the handbook for free crystals, and plan your next enchant without assuming every upgrade costs the same.
How do you get crystals?
Android Games describes this loop in its diving update video: collect sunken items underwater → exchange them for crystals → use crystals to upgrade equipment. The narration names rods and dumbbells. These crystals are not the ordinary island-income cash or the Gems used in the Gem Shop.
- Choose the upgrade you want before starting a collection session.
- Note its required crystals and any separate item requirements.
- Gather underwater loot and exchange the items needed to cover the shortfall.
- Return to the upgrade screen and check the resulting cost and success chance before confirming.
This checklist organizes the reported resource loop. The acquired narration does not state a diving unlock threshold, oxygen limit or fixed item-to-crystal rate; the guide does not assume one.
Free crystals come from the handbook
Diving is not the only crystal source, and the cheaper one is easy to miss. A recorded session notes that the game has a handbook, and that every time you discover something new for the first time, the game rewards you with free crystals.
That changes the order you should do things in. Before you spend a session grinding the ocean floor, fish a variety of zones and species to trigger handbook discoveries, then check the handbook for unclaimed crystal rewards. Discovery is also tied to other progression: a separate session reports that a base upgrade requires discovering around 75% of fish, which is a strong hint that the roster is large and that discovery is a first-class progression track rather than a completionist extra.
Two cautions. We have not verified how much each discovery pays, and we have not verified whether handbook rewards are claimed automatically or need collecting. Open the handbook and read it rather than assuming either. See the Index and Gems page for the equivalent collection track that pays Gems instead of crystals.
Why can a 62% enchant fail?
In Android Games’ separate enchanting video, the creator wants an upgrade requiring 200 crystals for the intended 100% attempt, holds 124, and tries 62%. That attempt fails. This is one reported upgrade example, not a universal price table.
| Question | Calculation | Answer |
|---|---|---|
| How many more crystals? | 200 − 124 | 76 |
| What share is funded? | 124 ÷ 200 × 100 | 62% |
| What is the complementary failure chance? | 100% − 62% | 38% |
One failure is consistent with a 62% chance; it does not prove the rate is broken. The numerical match above also does not establish that every enchant uses a linear crystals-to-chance formula.
For your own target, use shortfall = max(0, required crystals − current crystals). If the next screen instead asks for 350 and you hold 240, the illustrative shortfall is 110. This subtraction plans a collection target; it does not calculate the game’s hidden odds.
Should I enchant now or collect more?
If losing this attempt would stop your next planned upgrade, collecting the remaining amount is the more cautious choice. If you accept the displayed risk, decide that before spending rather than treating a likely result as a promise.
Use a concrete stopping point for the next dive: the shortfall for one chosen upgrade. Compare crystals and required items separately; surplus items do not automatically fill a crystal shortage. After upgrading, compare the changed stat with the problem you meant to solve.
Video references and exact scope
- Android Games — diving, sunken items and crystals.
- Android Games — the 200/124-crystal example at 0:14.
Automatic captions were read September 16; upload dates and gameplay frames were not available to verify. The second video also reports four fish per cast, but its acquired narration does not reveal the promised exact hook setup. For explicit equipment combinations, use the separately sourced float loadouts.