What it takes to keep koi well: pond size, depth, filtration, feeding and the realistic costs of ownership.
Koi are among the most rewarding pond fish. They live for decades, recognize their owner and come to the edge to be fed. They are also big, hungry fish that make a lot of waste, and they need a pond built around them.
Plan for the fish they will become, not the small ones you buy. A few koi grow quickly to a foot or more, and a pond that is fine for juveniles may be cramped within two years. Depth, volume and filtration matter more than any decoration.
Bigger and deeper is better.
Handle heavy waste loads.
Oxygen for big fish.
Steep sides and netting options.
The right food by season.
Protect the fish you already have.
Koi PondsDeep, well-filtered ponds built for koi, with the volume, circulation and safety features that keep big fish healthy…Explore 
Maintenance PlansRegular visits that keep your pond clear, your fish healthy and your equipment running, through every season.Explore 
Spring Pond OpeningThe seasonal startup that gets pumps, filters, plants and fish ready for warm weather.Explore 
Fall Closing and WinterizingLeaf nets, final cleaning, equipment prep and fish plans that carry a pond safely through cold weather.Explore 
Koi and Fish HealthWater testing, feeding plans, stocking advice and early-warning checks that keep pond fish healthy and growing.Explore 
Pond FiltrationMechanical and biological filtration sized to the pond and the fish so the water stays clear all season.Explore 
UV ClarifiersUltraviolet clarifiers, bacteria and water conditioners that turn green water clear when used the right way.Explore 
Pond AerationAir diffusers, bottom aerators and fountain aerators that keep oxygen up through hot summer weeks and winter ice.Explore Size a pond, pick a pump or ballpark the cost.
Pond Volume and Gallons CalculatorEnter length, width and average depth and see the gallons your pond holds, the pump flow to aim for and the water for a first fill.Try it 
Pond Pump Size CalculatorEnter pond volume, waterfall width and lift and see the pump flow to look for.Try it 
Pond and Water Feature Cost EstimatorPick a project and a size and get a ballpark planning range.Try it It depends on volume and filtration. A common guide is far fewer fish than people expect.
They often do. We design planting areas to protect the plants or choose fast growers.
They are not hard when the pond is built well, but they need steady care.
SituationNew YardsStarting from bare ground: where to put water, how big to go and what to decide before the…Learn more 
SituationNeglected PondsA pond that has turned green, filled with muck or been swallowed by weeds can nearly always be…Learn more 
SituationCommercial and CommunityWater for entrances, lobbies, campuses and neighborhoods: durable, safe and presentable every single day.Learn more 
SituationFarm and Large PropertiesPonds for stock, fishing, irrigation and views on acreage: what size to build, how to keep them healthy…Learn more Quick scheduling, careful work and a clear price before we start.
