Auto-Stockers & Stalkers

Auto-Stockers (sometimes referred to as Stalkers in patch notes and community posts) automatically replenish fish so you spend less time stone-throwing and more time feeding the black hole.

Why they matter

The black hole only pays when fish arrive. If your pond is empty, your multipliers idle. Auto-Stockers convert money into throughput.

Upgrade axes

Players typically watch three knobs:

• Speed — how quickly replacements arrive.
• Efficiency — how much value you get per cycle (wording varies by build; verify in-game).
• Capacity — how much volume the system can sustain before throttling.

When to buy your first one

The beginner guide recommends purchasing after early black hole milestones so you do not starve your multiplier progression.

Synergies

• Pair with progression planning (progression tips).
• Trait optimization still matters—stocking trash fish faster does not beat better fish (traits guide).