Goldfish in Deep Pond Without Pump During Winter

Seattle-area 5-foot deep pond (10x7 ft), no pump running, surface freezing at night. Asks if goldfish survive without pump.

Pump Not Required

Depth (5 ft) provides ample unfrozen habitat. Critical need: maintain a hole in ice for gas exchange.

Simple Winter Setup

• Floating de-icer or air stone.
• No need to run pump/fountain.
• Monitor ice cover; keep opening clear.

See full winterizing guide.