Quick answer: Set a no-dig 29- to 69-gallon container on the patio, add plants and a circulating pump, and skip koi. Small display fish belong only in bowls the maker lists for fish.
A patio pond is a no-dig, above-ground container water garden, not a dug hole. This page is a setup guide built from published maker specs. Our research team did not fill a bowl, did not keep fish, and did not run a pump.
Selection rule: we cover currently sold, no-dig containers whose maker lists 5 to 85 gallons. We leave out in-ground liners, bury-in preform ponds, and tanks listed at 165 gallons or more.
Pick a no-dig container first
A patio pond starts as a sealed tub you set down, and you do not excavate.
Comparing published specs, four current listings span that range. Aquascape’s AquaGarden Mini Pond Kit page lists a lower pond of 5 to 7 gallons. Aquascape’s Fountain Bowl page lists 29 gallons in the 32-inch bowl and 69 gallons in the 40-inch bowl.
Rubbermaid Commercial’s BRUTE Stock Tank page lists 50 gallons for model FG424300BLA. Behlen Country’s Farmstead Round page lists 85 gallons as its smallest round size.
Use this volume rule when you shop:
- 5 to 7 gallons: plants and a waterfall kit only
- 29 to 50 gallons: plants plus a few small display fish
- 69 to 85 gallons: more plants and more stable water
- 165 gallons and up: not a patio pond on this page
The AquaGarden Mini Pond Kit page lists a 23.5-inch diameter and a 9 7/8-inch height. That kit is tabletop scale, not a fish pond.
The Fountain Bowl page lists the 32-inch bowl at 14 inches high and the 40-inch bowl at 16 inches high. Those two bowls are the core patio sizes below.
Rubbermaid Commercial lists the 50-gallon BRUTE tank as 52 inches long, 31 inches wide, and 12 inches high. The empty weight on that page is 23.5 pounds.
Behlen Country lists five round sizes, from 85 gallons up to 1,100 gallons, and only the 85-gallon size meets this page’s cutoff. That maker also states that 2-foot-tall tanks include a ⅜-inch drain plug.
Skip any pot with a drain hole you cannot plug, and skip thin ceramic that can crack when water freezes.
Container specs side by side
These five products are sold now, and the numbers come from each maker’s page. This table is an attribute list, not a ranking.
| Product | Maker-listed volume | Outside size | Build | Pump on the maker page |
|---|---|---|---|---|
| Aquascape AquaGarden Mini Pond Kit | 5 to 7 gallons (lower pond) | 23.5 in diameter × 9 7/8 in high | Injection-molded | Waterfall included; no GPH listed |
| Aquascape Fountain Bowl, 32-inch | 29 gallons | 32 in diameter × 14 in high | Fiber-resin composite | Not included |
| Rubbermaid Commercial BRUTE Stock Tank, 50G (FG424300BLA) | 50 gallons | 52 × 31 × 12 in | RigidCell plastic | Not included |
| Aquascape Fountain Bowl, 40-inch | 69 gallons | 40 in diameter × 16 in high | Fiber-resin composite | Not included |
| Behlen Country Farmstead Round, 85 Gal | 85 gallons | 2-foot-tall class | Galvanized steel | Not included |
Comparing published specs, the 40-inch Fountain Bowl holds 69 gallons, more than double the 29 gallons listed for the 32-inch bowl. The Rubbermaid 50-gallon tank sits between those bowls by volume. It is the only tub here whose maker lists an empty weight of 23.5 pounds.
The AquaGarden kit is the only row that includes a waterfall on the maker page. The other four need a separate pump.
If you later want koi, stop, because a patio bowl is the wrong class. Use our above-ground koi pond guide for tanks built for koi.
Place, level, and fill the container
Set the empty tub where it will live. You will not want to slide it once it holds water.
Follow this order:
- Check that the patio or deck is level.
- Set the empty container in morning sun if you can.
- Keep the rim away from roof runoff and lawn fertilizer.
- Confirm a GFCI outdoor outlet is in reach of the pump cord.
- Fill with tap water and wait before you add fish.
Little Giant’s PE-1F-PW page lists a 15-foot cord, while the PE-1H-PW page lists a 6-foot cord. Measure that run before you buy, and keep the cord off walkways.
Fill to a few inches below the rim so plants and splash have room. On the Rubbermaid tank, the 12-inch wall height means wind can slosh water, so sit that tank out of the walkway.
Dechlorinate tap water with a product labeled for ponds or aquariums, and follow that bottle’s dose. We do not publish a dose we did not read on a current maker page.
Let the filled bowl sit while you pot plants. Do not add fish on fill day.
Add plants before you add fish
Plants do the daily work in a small bowl. They shade water and take up nutrients.
The USDA Agricultural Research Service released the current Plant Hardiness Zone Map on November 15, 2023. That map uses 13 zones. Each zone spans 10 degrees Fahrenheit and splits into 5-degree A and B half-zones.
The 2023 USDA map draws on 13,412 weather stations. Look up your zone on that map before you buy hardy plants. Treat tropical floaters as summer-only plants if your zone gets a hard freeze.
Use three plant jobs, not a shopping list of species we did not source:
- One floating plant to shade part of the surface
- One potted marginal on a shelf or brick
- One submerged bunch for extra leaf area
The AquaGarden Mini Pond Kit page says the lower pond can hold floating plants or a small water lily. It also houses the plant-and-waterfall filter. The Fountain Bowl page describes removable shelves and hanging planters sold separately.
Pot marginals in heavy garden clay or aquatic planting media, then top the pot with gravel so soil does not cloud the bowl. Do not use light potting mix that floats.
Cover about half the surface after plants settle. Bare water heats fast in a 12- to 16-inch-deep tub.
Do not dump leftover plants into a creek or storm drain. Some water plants are restricted in some states, so check your state list before you buy.
Choose fish that fit the bowl
Skip koi in every container on this page. Koi grow too large for 29 to 85 gallons.
If you want koi later, read our koi fish care guide first. Then size a true pond, not a patio bowl.
Aquascape’s Fountain Bowl page names small fish like rosy reds as the example livestock. That is a display minnow, not a carp, so stay in that size class.
Use this fish rule:
- No fish in the 5- to 7-gallon AquaGarden lower pond
- A few small minnows only in 29 gallons or more
- No koi, no large goldfish, no turtles
- No fish until the pump has run and plants are in
A patio pond is a closed ornament, so do not harvest the fish for food. Feed a pinch of food made for pond or aquarium fish, and stop if food sits on the surface.
Raccoons and herons treat a shallow tank as a dish. The Rubbermaid tank’s 12-inch wall offers little cover, so use a wire grid or dense plants.
Match the pump to the listed volume
A patio pond needs moving water. Still water grows film and invites mosquitoes.
Comparing published specs, size the pump to the gallons on the tub’s maker page. Turn the full volume at least once per hour.
Little Giant’s PE Series page lists these flows at 1 foot of head:
- PE-1F-PW and PE-1H-PW: 170 gallons per hour, 36 watts
- PE-2F-PW and PE-2H-PW: 300 gallons per hour, 47 watts
The PE-1F-PW lists a 15-foot cord and a 6.5-foot shut-off. The PE-2F-PW lists a 15-foot cord and a 12.2-foot shut-off.
For the 29-gallon Fountain Bowl, 170 gallons per hour exceeds one turnover. The same listing also exceeds one turnover in the 69-gallon bowl and the 85-gallon Behlen tank.
Set the pump on a brick, not in sludge, and aim the outlet along the surface so the water ripples. Plug the pump into a GFCI outlet, and top off after hot days so the pump does not run dry.
The AquaGarden kit already includes a waterfall, so do not add a second pump unless the kit page says to. Stay with a pump sold for ponds or fountains. Little Giant’s PE Series page describes epoxy-encapsulated motors for water features.
Run the first week, then keep a simple rhythm
The first week is for plants and flow, not livestock.
Do this in order:
- Fill, dechlorinate, and start the pump on day one.
- Add potted and floating plants on day one or two.
- Watch the water for two more days.
- Add fish only if the bowl is 29 gallons or more.
- Feed lightly and net out leftovers.
Green water in week one is common in a new bowl. More plants and less fish food usually beat a chemical dump. If you use an algaecide, it must be labeled for fish if fish are present.
After the first week, follow a short list:
- Top off evaporated water
- Pull dead leaves before they sink
- Rinse the pump screen when flow drops
- Thin floating plants when they cover the whole surface
For a calendar you can reuse each month, use our pond maintenance schedule.
In fall, check the USDA zone map again and move tropical plants indoors before your first hard freeze. Drain a thin resin bowl if ice could crack it.
A galvanized 85-gallon tank can stay filled if you keep a hole in the ice. Do not chip a solid ice sheet, and do not leave fish in a 12-inch-deep tank that can freeze to the bottom.
FAQ
How many gallons does a patio pond need?
A plant-only kit can be 5 to 7 gallons, which is the lower pond volume on Aquascape’s AquaGarden Mini Pond Kit page. A patio pond with small fish should start at the 29 gallons listed for Aquascape’s 32-inch Fountain Bowl. The 40-inch Fountain Bowl lists 69 gallons, which gives more buffer.
Can I keep koi in a patio pond?
No. Koi do not fit a 29- to 85-gallon no-dig bowl. Use a purpose-built pond instead, and read our koi care and above-ground koi pond pages before you buy fish.
Do I need a pump if I keep plants only?
A pump is still the safer default, because moving water reduces film and mosquito use. The AquaGarden kit includes a waterfall, but a bare Rubbermaid or Behlen tank does not. Little Giant lists 170 gallons per hour on the PE-1F-PW, which exceeds one turnover in every tub on this page.
Where should I place a patio pond?
Set it on a level patio or deck and leave space to walk around the rim. Keep fertilizer and mower clippings out of the water, and place the cord so it reaches a GFCI outlet. The PE-1F-PW cord is 15 feet on Little Giant’s page.
What plants should I start with?
Start with one floater, one potted marginal, and one submerged bunch. Match hardy plants to the USDA 2023 zone map, which has 13 zones based on average winter lows. Treat tropical floaters as seasonal if your zone freezes.
Can a patio pond stay out all winter?
Only if the container and the fish can handle ice. A 12-inch-deep tank can freeze through. Bring tropical plants inside, and move fish indoors if the bowl is shallow.
How often should I change the water?
Do not dump the whole bowl each week. Top off what evaporates, and remove sludge and dead plants. Change a portion if the water smells or the fish gasp, and use the maintenance schedule page for a monthly list.
