Pond Maintenance
Year-round pond care made simple: quick weekly checks, the spring and fall jobs that matter most, and how to get your pond safely through winter.
Year-round care
Looking after a pond through the year
A healthy pond doesn't need constant work, but it does need the right jobs at the right time. Most problems, from green water to fish losses in winter, can be prevented with a few minutes of care each week and a bit more effort in spring and fall.
Our season-by-season pond maintenance guide is the place to start. It lists what to do in spring, summer, fall and winter, plus quick weekly and monthly checks.
For the busiest times of year:
- Fall: falling leaves are a pond's biggest enemy, because they rot and pollute the water. See how to get leaves out of a pond for nets, skimmers and cleanup.
- Winter: how to winterize a pond covers when to stop feeding fish, what to do with the pump and how to keep a hole in the ice. To decide whether you need one, read do you need a pond de-icer?
Keep a basic kit on hand, such as a net, water test kit and dechlorinator; our pond supplies checklist lists the essentials. If something goes wrong despite good care, the Troubleshooting section can help.
Common questions
Most ponds only need a full clean-out every few years, or not at all if they stay balanced. Instead, skim debris and check the pump weekly, rinse filter media in pond water when flow drops, and do a partial clean in spring to remove sludge and dead leaves.
Partial water changes of about 10% every week or two help keep water quality steady in fish ponds. Use a dechlorinator when adding tap water, since chlorine and chloramine can harm fish and filter bacteria.
Keeping the filter and pump working. Moving, filtered water prevents most problems, from algae to low oxygen. Check the pump intake and filter regularly, especially in summer and when leaves fall.