Seasonal Pond & Fountain Maintenance
Your Year-Round Guide
Routine maintenance keeps your water feature clean, clear, and its inhabitants healthy year-round. Whether you have a pond, waterfall, or fountain, your care routine changes with the seasons. Here is everything you need to know, season by season.
Why Water Temperature Matters For Your Pond
Watch the water, not the air
For most aquatic life, especially fish, water temperature is the true indicator of what care is needed, not air temperature. Water takes longer to heat and cool than air, which means seasonal changes in your pond lag behind what you feel outside. A thermometer is essential for knowing when to act. Steps throughout this guide are tied to specific water temperatures rather than calendar dates for this reason.
Ponds & Waterfall
Seasonal Maintenance
The key to a thriving water garden is consistent maintenance throughout the year. Here is what to do in each season, keyed to water temperature so you know exactly when to act.
- 40°FTest for high ammonia and nitrites. Perform a 25–50% water change if levels are elevated. Add Chlorine Remover when refilling with tap water. Restart your pump, run for a few hours and check for leaks.
- Begin adding beneficial bacteria treatments to re-establish your pond's natural balance.
- If you used an aerator during winter, leave it running to continue oxygenating the water all season.
- 60°FAdd tropical plants. If needed, perform a 50% water change with Chlorine Remover.
- 70°FBegin fertilizing plants. Inspect, clean up, and reposition plants that have been resting on the pond bottom.
- Any time you clean your pond, disturb your filter, or rinse a filter pad, add Pond Maintenance Tablets to boost beneficial bacteria growth.
- Keep water moving constantly with an aerator, spitter, nozzle kit, or waterfall. Consistent aeration keeps oxygen levels healthy for fish and prevents mosquitoes from nesting on the surface.
- 72°FClear out as much debris as possible. Divide and repot plants. Replace 50% of the water using Chlorine Remover to remove tap water toxins. Do this before water drops below 60°F.
- 60°FDispose of or bring in tropical plants. Install pond netting to keep falling leaves out of the water.
- 50°FTrim and move hardy lilies to deeper water.
- Clean your pond thoroughly before water temperature falls. This is one of the most crucial steps in winterizing your water garden. Do this before water drops below 50°F.
- 40°FRemove your pump and install an aerator and/or deicer. Leaving the pump running in cold temperatures will lower the deep-water temperatures, causing potentially fatal stress to fish.
- When temperatures have begun to cool, be sure to add a beneficial bacteria to your pond.
- Drain, remove and store anything that has glass or plastic inside, such as your ultraviolet clarifier, pressurized filter, and filter boxes. Keep them in a bucket of water in your garage, basement, or other indoor areas that will not allow the water to freeze.
- 32°FOnce your pond is shut down for the winter and the surface freezes, it is important to keep an eye on your pond. Make sure a section of the ice is open, move away any debris, and monitor your fish for any signs of illness.
- If your pond surface freezes with your fish inside, do not break the ice. Thaw a whole with warm water to keep fish safe from the shock of breaking the ice with force.
Caring For Pond Fish Through the Seasons
Your fish need extra attention as seasons change
Fish add beauty to any pond, but keeping them healthy year-round takes some know-how. From stocking levels to seasonal feeding, here are two essential guides every pond fish owner should read.
Fountain
Seasonal Maintenance
Even without living inhabitants, your fountain needs seasonal care to stay in good shape and keep running well. Here is what to focus on in each season.
- If you winterized your fountain, now is the chance to move it back outdoors and get it running.
- Wipe it down with a cloth and some water to remove any dirt and buildup that collected during winter storage.
- Clean your pump in a bucket of fresh water and scrub it gently with a clean sponge, cloth, or toothbrush.
- Keep an eye on your fountain and add more water as needed. If the water levels drop too low in the fountain, it can run dry and damage the pump. Consider upgrading to a low water shut-off pump that automatically turns off when the water levels drop too low to avoid damage.
- Fall leaves can enter the fountain and cause damage to the fountain pump. It’s important to scoop out the debris daily if your fountain starts to collect leaves. Ideally, if your fountain is small enough to move, place it in a spot farther away from trees that will shed their leaves.
- If you live in a warm climate where it does not snow or gets icy, you can keep your fountain running all year long.
- In colder climates, you may need to winterize your fountain as the season begins to change. Move your fountain inside before temperatures drop, and ice starts to form.
- During the winter, your fountain should ideally winterize indoors to protect it from snow and ice.
- Large fountains can winterize outside, removing the fountain pump and tubing and keeping them indoors until spring. Protect your outdoor fountain from snow by covering it with a fountain cover or tarp, routinely brushing off snow buildup whenever possible. If you do not have a cover, place towels in the tiers and basin of the fountain to absorb the water to prevent it from entering the fountain and freezing.
- Small fountains can be moved indoors and used all year round, but please be aware of any small splashes while running fountains inside.
- After removing the pump, clean it and check for damage. Store the pump indoors, safe from the cold. If you are storing the pump inside a shed, remove any water left in the pump to avoid icing. If you're storing pumps inside your house, it helps to place the pump in a bucket of water to keep the moving parts and seals wet.
Products for Every Season
The right product at the right time makes seasonal maintenance simple. These are the ones pond and fountain owners reach for most throughout the year.
Water Quality Guide
Testing, parameters, and treatments. Everything you need to keep your water balanced.
Pond and Fountain Blogs
Seasonal tips, how-tos, and care guides written for real water feature owners.
