Your Essential Winter Pond Care Checklist

Winter pond care doesn't have to be complicated. Follow this checklist to keep your pond and fish healthy through the cold months.

Before Winter (Fall Preparation)

Cleaning

☐ Remove all leaves and debris 

☐ Vacuum pond bottom

☐ Trim dead plants ☐ Clean filters thoroughly 

☐ Add beneficial bacteria before water drops below 40°F

Fish

☐ Switch to wheat germ food below 60°F

☐ Stop feeding completely below 50°F

☐ Check fish health before winter

Winter Aeration Setup

☐ Install de-icer or aerator

☐ Position aeration near surface (not bottom)

☐ Test equipment operation

During Winter

☐ Check that aeration opening stays open

☐ Remove snow from ice to allow light penetration

☐ Monitor equipment weekly

☐ Never break ice by force

☐ Do NOT feed fish regardless of temperature

Early Spring

☐ Test water when ice melts

☐ Perform water change if needed

☐ Add beneficial bacteria at 40°F

☐ Wait for consistent 50°F+ before feeding

☐ Start with wheat germ food, gradually increase

Common Mistakes to Avoid

❌ Feeding when water is too cold

❌ Breaking ice with force

❌ Positioning aerators at pond bottom

❌ Allowing complete ice-over without gas exchange

❌ Skipping fall cleanup

❌ Starting spring feeding too early

Climate Considerations

Mild winters (rarely below freezing): Minimal winterization needed, may keep some equipment running

Moderate winters (regular freezing): Basic winterization, simple aeration sufficient

Cold winters (extended freezing, thick ice): Full winterization essential, robust aeration required, ensure adequate pond depth 

Learn More

For detailed guidance on each topic, see our complete winter care series:

• When to Stop (and Start) Feeding Your Pond Fish
• Why Winter Aeration Matters
• Fall Pond Cleanup: Your Winter Success Starts Now

About Koi & More Pond Shop

We're your complete resource for pond supplies, expert advice, and professional services. From equipment installation to seasonal maintenance, we help pond owners through every season.

Visit us online at koiandmorepondshop.com or contact us for personalized guidance based on your pond and local climate.