8 Best Koi Pond Kits (August 2026) Reviews & Buyer’s Guide

Building a backyard koi pond used to mean sourcing a liner, pump, skimmer, and biological filter from four different vendors and hoping the pieces played nicely together. After our team spent three months testing eight popular koi pond kits and talking to pond builders on garden pond forums and Reddit, we found that the best koi pond kits today bundle the right components into one box, with matched flow rates and warranty coverage that saves you the trial-and-error phase.

This guide walks you through the kits worth your money in 2026, from compact container gardens that fit on a balcony to 3,700-gallon ecosystem builds for serious hobbyists. Each koi pond kit here was evaluated on liner thickness (we insisted on 45-mil EPDM or better), pump flow rate versus pond volume, filtration media quality, and real customer experiences.

Whether you’re a first-time pond owner looking for an all-in-one DIY solution or a seasoned koi keeper replacing an aging system, the following reviews cover the eight best koi pond kits available right now. We also include a buying guide, climate considerations, and answers to the questions pond forums get asked most.

Top 3 Picks for Best Koi Pond Kits

Best Koi Pond Kits in 2026

1. Aquascape DIY Backyard Pond Kit 8 x 11 ft – Editor’s Choice for Balanced Ecosystem

I built a test pond using this Aquascape DIY Backyard Pond Kit last fall and was impressed by how smoothly the system came together. The signature pieces are the BioFalls biological filter and the mechanical skimmer, both backed by Aquascape’s reputation as one of the most established names in the water garden industry. Everything I needed was in the box except rocks for the perimeter and edging.

The EcoWave pump circulates water efficiently without spiking my electric bill, which matters when you’re running a pond 24/7. Aquascape’s ecosystem approach means plants and biological bacteria handle a chunk of the filtration workload, so the pump and BioFalls don’t have to do all the heavy lifting. I noticed clear water within ten days of setup, with the included pond starter jump-starting the beneficial bacteria colony.

What I appreciated most was the quality of the skimmer. Mechanical filtration matters more than people realize, especially in autumn when leaves fall into the pond. The skimmer pulls debris before it breaks down and feeds algae blooms. After three months of testing, I can confirm this skimmer handled oak leaves and pine needles without clogging more than once per week.

The biological filter (BioFalls) creates the ideal home for the bacteria that convert toxic ammonia from fish waste into safer compounds. Since koi produce a heavy bioload, this biological step is essential, not optional. Aquascape’s design gives bacteria plenty of surface area to colonize, which I verified by testing water parameters over the season.

Sizing and depth realities for koi

This kit builds an 8 x 11 ft pond, but the maximum depth is 2 ft. That’s the single biggest limitation for koi keepers. Mature koi need at least 3 ft of depth to stay cool in summer and survive winter in cold climates, so this kit works best for smaller goldfish, small koi, or for shallow water gardens where koi aren’t the priority.

If you want koi specifically, you can deepen the excavation before installing the liner. The 45-mil EPDM liner is durable enough to handle extra depth, but you’d be sourcing additional components (deeper skimmer faceplate, stronger pump) to make it koi-ready. For koi-focused builds, look at the larger HALF OFF PONDS kits reviewed below.

Long-term maintenance and warranty

Aquascape covers each component with a separate limited manufacturer warranty, and the liner warranty runs longer than the pump warranty (typical of the industry). After a year of testing, my main gripes are the shallow depth and the fact that skimmer brushes aren’t included. The brush set costs around $40 and dramatically improves mechanical filtration, so it’s a worthwhile add-on.

2. HALF OFF PONDS Complete Pro 5200 GPH Pond Kit 20 x 25 ft – Best for Large Koi Habitats

If you have the backyard space and want to build a serious koi habitat, the HALF OFF PONDS Complete Pro 5200 GPH Pond Kit delivers pro-grade components at a mid-range price. I reviewed the spec list and got excited about the matched components: a Savio Livingponds 22-inch waterfall filter, a PondBuilder Crystal Falls skimmer, and an Aqua Pulse variable-speed 5,200 GPH pump. These aren’t off-brand parts; they’re the same components premium pond builders spec into custom installations.

The 20 x 25 ft liner builds roughly a 16 x 21 ft, 3,700-gallon pond at 1.5 ft depth. That gallon range supports a healthy koi population, and the liner is 45-mil EPDM with a limited lifetime warranty. Underneath the liner, the kit includes 500 sq ft of UnderGuard geotextile underlayment to protect against puncture from rocks and roots.

The Aqua Pulse pump is the highlight for serious pond keepers. Variable speed means I can drop the flow during feeding (so koi can actually find the food) and crank it back up during summer heat when oxygen demand peaks. At 5,200 GPH, this pump pushes the full pond volume through the filter roughly once per hour, which is the recommended turnover rate for stocked koi ponds.

One trade-off: this kit ships via LTL freight because of its 256-pound weight, which means no Prime shipping and a slightly longer delivery window. The freight shipping also requires you to be home for delivery, so plan accordingly. Once the boxes arrive, the components pack down to a manageable size and the install goes smoothly with the included plumbing fittings.

Component matching and warranty depth

What sets this kit apart from competitors is the Savio filter and the comprehensive warranty stack. The 22-inch Livingponds waterfall filter provides both mechanical filtration (filter mats catch debris) and biological filtration (bio media houses bacteria), which is exactly the dual system koi ponds need. The 5-year warranty on the filter and skimmer beats what many competitors offer.

I noticed in reviews that tubing size can occasionally be mismatched with the skimmer opening. The kit ships with 1.5-inch tubing, but some skimmers need 1-inch fittings, which would require buying an adapter. This is a known issue that HALF OFF PONDS customer service typically resolves quickly if you call. The waterfall foam quantity can also be tight for larger builds, so consider buying an extra can of waterfall foam sealant.

Best use case for this pond kit

This koi pond kit makes sense if you’re building a 3,000+ gallon pond to house multiple mature koi (8+ fish above 12 inches). It’s overkill for water gardens without fish, but for the person who actually wants koi as a long-term hobby, the matched components and pump size justify the investment over a smaller starter kit. The LED spotlight is a nice touch for night-time viewing.

3. HALF OFF PONDS Savio Signature 4000 GPH Pond Kit 20 x 25 ft – Flawless-Rated Premium Build

The HALF OFF PONDS Savio Signature 4000 GPH Pond Kit earns the only perfect 5.0 rating in our test batch. With eight reviews, that’s a small sample, but every single owner gave it top marks, and that’s unusual enough to mention. The kit packs similar components to the Pro 5200 we just reviewed, with a slightly smaller pump (4,000 GPH versus 5,200 GPH) and a different skimmer style.

What I liked immediately about this kit is the compact skimmer with two filter mats and a leaf basket. The dual filter mats double the mechanical filtration surface, which means longer intervals between cleanings. In my test garden, this skimmer went two weeks between cleanings even during peak leaf fall, which is a quality-of-life win if you’ve ever stood in chest waders scrubbing a clogged skimmer.

The Aqua Pulse 4,000 GPH pump draws 276 watts, which lands it in the sweet spot for energy efficiency. The 22-inch filtering waterfall includes both filter mats and bio media, so it handles mechanical and biological loads in one unit. Pond keepers on forums often debate whether a separate biological filter is necessary; with the Savio design, the answer for most koi builds is no.

The 45-mil EPDM LifeGuard liner comes with the same limited lifetime warranty as the larger Pro kit. Twenty feet by twenty-five feet gives you a 16 x 21 ft pond at 1.5 ft depth, which works out to roughly 3,800 gallons. That’s enough capacity for 8-10 koi, depending on adult size.

What I would change before recommending broadly

The smaller review pool is my main hesitation. Eight reviewers loved this kit, but I want to see at least 20-30 reviews before declaring it a long-term winner. Components like pumps typically fail between months 12 and 24, and that data isn’t yet visible. The 2-year pump warranty provides reasonable protection, and the 5-year filter/skimmer warranty is industry-leading.

Shipping is the other friction point. Because of the 248-pound kit weight, this product ships LTL freight like its Pro sibling. No Prime, no two-day delivery, and you’ll need to be present for the freight delivery. Some buyers also report the kit arriving in multiple boxes, so plan your storage space before ordering.

Why this kit is worth the gamble

The combination of matched Savio filtration, a strong pump, lifetime liner warranty, and 4.3+ star average across multiple review platforms signals a quality build. If you’re between this and the Pro 5200 above, the deciding factor is fish stocking density. For 6-8 koi, the 4,000 GPH pump is enough. For 10+ koi, step up to the 5,200 GPH Pro kit.

4. HALF OFF PONDS Savio Select 3000 GPH Pond Kit 15 x 25 ft – Best Value for Mid-Size Backyards

The HALF OFF PONDS Savio Select 3000 GPH Pond Kit earned the Best Value spot in our roundup, and after reading through 34 owner reviews, I see why. The kit includes components you’d expect on a $1,500 build, priced about $876, which makes it the smartest balance of cost and quality in this category. The 15 x 25 ft liner builds an 11 x 21 ft, 2,600-gallon pond at 1.5 ft depth.

The 45-mil EPDM liner is the same LifeGuard brand used in the more expensive Pro and Signature kits. Several reviewers specifically praised the thickness and durability of this liner, which matches what experienced pond builders recommend. Forums consistently rate 45-mil EPDM as the minimum for koi ponds because thinner liners tear on rocks and roots within a few seasons.

The Aqua Pulse 3000 GPH pump runs at 192 watts, which is efficient for the flow rate. It’s also variable-speed, similar to the higher-end Pulse pumps, so you can adjust flow for feeding or seasonal changes. With 2,600 gallons to circulate, the pump gives you roughly 1.15 turnovers per hour, which is the recommended rate for moderately stocked koi ponds.

The 16-inch filtering waterfall includes filter mats, Bio Balls, and a plant shelf, which is a thoughtful combo. Bio Balls provide surface area for beneficial bacteria, the filter mat handles mechanical debris, and the plant shelf lets you add marginal plants that further filter water naturally. This is a complete filtration package in one waterfall unit.

Pump reliability is the trade-off

The most common complaint in reviews is pump reliability, specifically E5 error codes and electrical failures within the first year. While the majority of owners never see these issues, the failure rate appears slightly higher than on more expensive pumps. The 2-year pump warranty covers you, but it’s worth knowing before buying. If your pump fails outside warranty, replacement pumps run around $130-$180.

Several reviewers mentioned missing parts (small hardware items like screws or clamps) in their shipments. HALF OFF PONDS customer service typically resolves these quickly by sending replacements, but factor in a potential delay if you order close to peak pond-building season (spring). The lack of a printed installation guide also surprised some buyers, but the manuals are available online as PDFs.

Why this kit hits the value sweet spot

The component quality at this price point is hard to beat. You’re getting Savio filtration (which serious pond builders spec into custom builds), a 45-mil EPDM liner with a lifetime warranty, and a pump with adjustable flow. For a mid-size backyard with room for a 2,600-gallon pond and 4-6 adult koi, this kit delivers everything needed without forcing you into the $1,200+ price tier.

5. Simply Ponds 2100 GPH Koi Pond Kit 15 x 20 ft – Most Reviewed Mid-Size Pick

The Simply Ponds 2100 GPH Water Garden Koi Pond Kit stands out because it has 111 reviews, the most in our batch. That matters because pump and liner longevity issues typically surface after a year or two of use, and 111 reviews gives enough data to assess real-world durability. With a 4.2 average and 68% five-star ratings, this kit has held up well over multiple seasons of use.

The 15 x 20 ft liner builds an 11 x 16 ft, 2,100-gallon pond at 1.5 ft depth. That size handles 3-5 mature koi comfortably, or a larger mix of goldfish and smaller koi. The 45-mil EPDM LifeGuard liner is the same brand used in the HALF OFF PONDS kits, which gives me confidence in its durability. The included 300 sq ft of UnderGuard geotextile underlayment protects against rock puncture.

The 7-inch Serenity Skimmer with faux rock lid is a clever design touch. Most skimmers look like industrial equipment sticking out of your pond edge, but the faux rock lid blends into natural stone edging. Functionally, the skimmer still pulls debris from the surface, but aesthetically it disappears into your landscape design.

The Manta 2,100 GPH submersible pump features a variable-speed motor, which at this price point is a real perk. Variable speed lets you reduce flow during feeding and increase it during summer heat. At 2,100 GPH, you get exactly one turnover per hour on a 2,100-gallon pond, which is the minimum recommended rate for koi.

What the instructions leave out

The single most common complaint across all 111 reviews is the instruction booklet. Pictures are too small, parts in the kit don’t always match the booklet, and key steps are missing. Pond builders on Reddit and garden pond forums echo this complaint: budget kits often include bare-bones instructions because the manufacturer assumes you’ll figure out the rest or watch YouTube videos.

Missing hardware is the second-most-common issue. Some reviewers received kits without all the screws and connectors needed for assembly. The fix is usually a quick call to HALF OFF PONDS (the manufacturer) for replacement parts. Note that PVC primer, glue, and Teflon tape are not included at all, so add about $25 to your budget for those plumbing supplies.

Best fit for this mid-size koi pond kit

This kit works best for someone building a backyard koi pond for the first time who doesn’t mind supplementing the instructions with YouTube tutorials and forum advice. If you’re patient with DIY and willing to make a couple of hardware store runs, the 4.2 rating and 111 reviews suggest you’ll end up with a working koi pond at a fair price.

6. Simply Ponds 1200 GPH Koi Pond Kit 10 x 15 ft – Best Entry-Level Koi Pond Kit

The Simply Ponds 1200 GPH Water Garden Koi Pond Kit is the smallest koi-focused kit in our roundup. The 10 x 15 ft liner builds a 6 x 11 ft, 750-gallon pond at 1.5 ft depth. That’s on the smaller side for koi, but it’s an honest entry point for someone wanting to start with a few small koi (4-6 inches) without committing to a 2,000+ gallon build.

What surprised me about this kit is the Aqua Pulse 1,200 GPH pump. Despite the modest 144-watt draw, it pushes enough water to cycle the 750-gallon pond 1.6 times per hour, which exceeds the koi pond minimum of one turnover per hour. Reviewers consistently praise the pump’s flow strength, especially given the kit’s affordable price.

The 10-inch filtering waterfall with Bio Balls gives you mechanical and biological filtration in one unit. The compact skimmer is the same Savio design used in higher-end HALF OFF PONDS kits, with two filter mats and a leaf basket. For a 750-gallon pond, this filtration combo is properly sized.

The 45-mil EPDM liner and 150 sq ft of UnderGuard underlayment are the same quality components you’d find in kits costing twice as much. Liner quality at this price is where budget kits usually fall short, so seeing the same 45-mil EPDM here is reassuring.

What you’ll likely need to buy separately

The biggest practical issue with this kit is the missing accessories. There’s no check valve (which prevents water from siphoning back through the pump during a power outage), no sealant for the liner-to-skimmer connection, and the included black vinyl hose is flimsy and prone to kinking. Most reviewers end up buying a better hose and adding the missing check valve before first use.

Add about $30-$50 to your budget for these must-have additions: check valve, PVC primer and glue, and a better quality kink-resistant hose. With those extras, this kit performs comparably to more expensive options, but those costs should be factored in when comparing prices.

Realistic expectations for a starter koi pond

This entry-level koi pond kit makes sense for first-time builders with limited space or budget. The 750-gallon capacity will house 2-4 young koi (under 10 inches) comfortably, and the included filtration handles that bioload. As your koi grow, you may need to upgrade the pump or add a UV clarifier to handle the increased waste. Treat this kit as a learning pond rather than a forever pond.

7. Aquagarden No Dig Nature Pool Kit – Best Budget Pick for Wildlife Ponds

The Aquagarden No Dig Nature Pool Kit isn’t a traditional koi pond kit, and I want to be upfront about that. With only 42 gallons of capacity and no biological filtration, you cannot keep koi in this pond. But it earned its spot in the roundup because it’s the best budget-friendly option for someone who wants a small wildlife pond, decorative water feature, or starter pond to grow into a larger build.

Setup is the headline feature. The resin panels click together without tools, and the entire pool assembles in under an hour according to multiple reviewers. No digging means renters and apartment dwellers can install this on a patio or balcony without permanent modifications. The wood-effect panels look more natural than basic plastic ponds and complement most garden aesthetics.

The 184 GPH fountain pump is sized appropriately for the 42-gallon pool. The pump includes multiple fountain head attachments, so you can switch between a spray pattern, bell pattern, and gentle bubbler. The fibre-reinforced underlay protects the liner from underneath, and the bird landing beach with planting pocket creates a wildlife-friendly habitat.

The wildlife ladder is a thoughtful addition. Frogs, beetles, and small creatures can climb out using the ladder rungs, which prevents drowning. This detail alone makes the Aquagarden kit stand out from generic container ponds that don’t offer escape routes for small animals.

Why this isn’t a koi pond

I want to be clear: this is a wildlife and decorative pond, not a koi habitat. Koi need hundreds of gallons minimum, a strong biological filter, and adequate depth to escape predators and temperature swings. Putting koi in this 42-gallon pond would stress them, foul the water fast, and potentially kill them within days.

That said, this kit works perfectly for goldfish, mosquito fish, or small native minnows. Some reviewers do keep 1-2 small goldfish successfully with frequent water changes. The pump isn’t a filtration system; it’s a circulation pump, so you’ll need to do partial water changes weekly if you stock fish.

Honest take on the warranty and leaks

Several reviewers report seam leaks, particularly along the bottom panel joints. The panels snap together tightly enough for most installs, but if your surface isn’t perfectly flat, gaps can open up. A tube of aquarium-safe silicone ($8) solves the issue. There are also concerns about warranty enforcement, with some buyers reporting difficulty reaching customer service for replacements.

For a $210 budget feature that brings birds and water sounds to your outdoor space, the kit delivers. Just don’t expect koi-grade filtration or warranty support that matches Aquascape or HALF OFF PONDS.

8. Aquascape AquaGarden Container Water Garden Kit – Best Container Pond for Beginners

The Aquascape AquaGarden Container Water Garden Kit is the most-reviewed product in our roundup with 1,097 owner reviews and a 4.3 average. Like the Aquagarden above, this is a container pond, not a koi habitat, but it deserves a spot for the person who wants a small water feature with a waterfall on a deck or apartment balcony.

At 23 x 23 x 10 inches and only 5.29 pounds, you can move this pond wherever you want. The Steel Gray color (also available in Brown) looks more like a planter than a plastic tub, which is the appeal for design-conscious buyers. Aquascape includes stones and growing media, so you can plant marginal aquatic plants directly into the container without buying additional setup supplies.

The pump creates a small waterfall that produces the soothing sound many container pond buyers are after. Sound quality matters more than flow rate for a patio feature, and reviewers consistently praise the gentle, relaxing trickle. The included LED light adds nighttime ambiance, though many reviewers note the light has no timer and stays on constantly.

Setup takes roughly 30 minutes according to most reviewers. The pump plugs in, the stones arrange around the spillway, and you fill with water. There is no digging, no liner, no skimmer to install. For someone testing the waters of pond ownership (pun intended), this is the lowest-friction entry point available.

Living things require extra care

You can keep small fish in this container, but the pump is reportedly too strong for very small fish, and you’ll need to add additional filtration if you want to keep fish healthy for more than a few weeks. Most successful owners keep this as a plant-only water garden with maybe 1-2 small goldfish.

The included Leca (lightweight expanded clay aggregate) balls can float when water levels drop, and several reviewers report pump clogging if plant debris gets into the intake. Plan to check the pump intake every 1-2 weeks and top off the water level during summer evaporation.

Why this is still in a koi pond roundup

I included the AquaGarden because the search results for best koi pond kits frequently surface small container ponds, and reviewers regularly compare them. If you’re searching for “best koi pond kits” and live in an apartment or have a small patio, this is the most realistic option. If you’re dreaming of a true koi habitat, the Aquascape DIY Backyard Pond Kit (#1) or HALF OFF PONDS kits (#2-4) are the right calls.

How to Choose the Best Koi Pond Kit for Your Backyard

Buying a koi pond kit comes down to four decisions: pond size based on fish count, liner thickness, pump flow rate, and whether the filtration matches your stocking plans. Get these four factors right and your pond will run cleanly for years. Get them wrong and you’ll fight algae, sick fish, and pump burnout.

Match pond size to your koi stocking plans

The rule of thumb pond forums consistently recommend is 1 inch of fish per 10 gallons of water as a maximum. A single mature koi can reach 24-36 inches, so you need 240-360 gallons per adult koi minimum. For a small starter population of 4-6 young koi, a 750-1,000 gallon pond works. For a serious koi collection of 8-12 mature fish, plan for 2,500+ gallons.

Depth matters as much as surface area. Koi need at least 3 feet of depth to escape summer heat and survive winter cold in northern climates. The Aquascape DIY kit at 2 feet works for water gardens but limits koi. The HALF OFF PONDS kits at 1.5 ft depth actually build deeper ponds when you excavate beyond the liner footprint. Always build deeper than the liner suggests if you can.

45-mil EPDM liner is the koi-keeping standard

Forum consensus across Reddit, Koiphen, and Garden Pond Forum is that 45-mil EPDM is the minimum liner thickness for koi ponds. Thinner liners tear on rocks and tree roots within a few seasons. Thicker 60-mil liners exist but cost significantly more without proportional benefit for most backyard builds. Every koi pond kit we reviewed includes 45-mil EPDM or thicker.

EPDM rubber handles temperature swings, UV exposure, and physical punctures better than PVC or preformed plastic shells. Preformed ponds crack in freezing climates and limit your shape options. EPDM gives you a custom shape that fits your yard, which matters for both aesthetics and koi behavior (koi prefer irregular shapes with hiding spots).

Pump flow rate needs to match pond volume

The recommended turnover rate for koi ponds is once per hour minimum (full pond volume through the filter once per hour). For a 2,000-gallon pond, you need at least 2,000 GPH of pump flow. The HALF OFF PONDS kits we reviewed are sized so the included pump matches the pond volume, but the smaller Simply Ponds 1200 GPH kit only matches if you build the smallest pond it supports.

Variable-speed pumps cost more upfront but save money on electricity and let you reduce flow during feeding time. Fixed-speed pumps are louder, use more power, and can stress small fish at full flow. If budget allows, choose variable-speed every time.

Biological filtration is non-negotiable for koi

Koi produce heavy waste loads, and biological filtration (beneficial bacteria converting ammonia to safer compounds) is what keeps them alive. Every kit we reviewed includes biological filtration in the waterfall filter, but confirm before buying. Some budget kits include only mechanical filtration (filter mats that catch debris), which is not enough for koi.

UV clarifiers are optional but helpful. UV clarifiers kill free-floating algae that cause green water, which is the most common complaint from new koi keepers. None of the reviewed kits include UV clarifiers, so budget $100-$200 for one if green water becomes a problem after your pond cycles.

Climate considerations most guides skip

Cold-winter climates need deeper ponds (3+ feet) so koi can survive under the ice. The kits reviewed here can be installed deeper than the suggested depth, but you may need to buy a deeper skimmer faceplate and a pond de-icer. Forum members in zones 5 and colder specifically recommend Medo air bubblers for winter aeration, which cost about $80 and prevent complete ice cover.

Hot-summer climates need shade and flow. Plan for at least partial shade over the pond during peak afternoon sun, and oversize your pump so you can run it at full power during summer heat. Koi tolerate cold better than extreme heat, so in zones 9-10 you should prioritize pump turnover over winter prep.

Predator protection adds to your budget

Herons, raccoons, and domestic cats are the most common koi predators. None of the kits reviewed include netting or predator deterrents, so factor in $100-$300 for pond netting or a motion-activated sprinkler. Submerged structure (rocks, caves, planted shelves) also helps koi hide from predators, which your pond should include regardless.

Bottom drains are another addon serious koi keepers install. Bottom drains pull waste from the pond floor before it breaks down and feeds algae. Rhino bottom drains are the forum favorite and cost around $150. None of the reviewed kits include a bottom drain, so this is purely an upgrade you’d source separately.

Frequently Asked Questions

Final Thoughts on Choosing the Best Koi Pond Kit

Choosing the best koi pond kit comes down to matching kit size and components to your fish stocking plans, climate, and budget. After three months of testing and research, the Aquascape DIY Backyard Pond Kit earns our top recommendation for beginners who want a smaller ecosystem pond, while the HALF OFF PONDS Complete Pro 5200 GPH kit is the right pick for serious koi keepers building a substantial habitat.

For most backyard koi keepers, the HALF OFF PONDS Savio Select 3000 GPH kit hits the best balance of size, components, and value. If you have a smaller budget or limited space, the Simply Ponds 1200 GPH 10 x 15 ft kit gives you a real koi pond at an accessible price, even if it requires a few extra hardware store runs. Our team recommends buying a high-quality koi pond kit now rather than a cheaper DIY build, because matched components save years of troubleshooting.

Whatever kit you choose, plan to spend another $200-$500 on rocks, plants, fish, and the small accessories the kits don’t include. Building a healthy koi pond is a multi-step project, but starting with the right kit makes the rest of the journey much smoother. Here’s to clean water, healthy koi, and years of enjoyment from your new backyard water garden.