Saying goodbye to a pet fish in Ontario
Fish are real pets, and some live for decades. We explain fish cremation in Ontario in plain words, including when a small fish is better honored another way.
- Pond and aquarium fish both covered
- Water cremation where it's offered
- Kind ways to explain it to children
Ontario, California
Getting help with a fish loss around Ontario
Many Ontario families have roots in several places, and it's common for ashes to be split so relatives in other towns or countries can keep a share. A private cremation, where your pet is cremated alone, is the option to ask for if you want to divide the remains or keep all of them. Communal cremation costs less and suits families who'd rather not keep ashes at home.
Ontario sits in the middle of the Inland Empire, where older neighborhoods around downtown and Euclid Avenue give way to newer tract homes in the south of the city. Most pets here live in single-family houses with a yard, which makes a home farewell easy to arrange. If you'd like a pickup, mention whether you're near the airport or off the busy freeway corridors, since traffic on the 10, 15 and 60 can stretch a short trip.
In a city like Ontario, the usual route for a pet fish is through a vet who sends small animals to a local crematory, or straight to the crematory itself. Not every provider advertises that it takes fish, so ask. It helps to say whether it's a pond fish or a tank fish, how long it is from nose to tail and whether you want anything back. A good provider will be honest if a tiny fish won't leave ash you can collect.
Ontario is home to about 187,013 people, the 24th-largest of the 307 California communities we cover. Some of the providers who serve Ontario are based about 12 miles away in Fontana, the nearest larger centre, so collection times reflect that drive.
For a second opinion on price, Montclair (3 miles), Upland (4 miles) and Rancho Cucamonga (4 miles) are close enough that their providers cover Ontario routinely. Two written quotes tell you more than any price list.
70.5%[1]
The NFDA projected California's cremation rate at 70.5% for 2024.
10 million[2]
About 10 million US households keep freshwater fish.
13%[3]
13% of UK households keep an indoor fish tank.
3-5% of body weight[4]
Embrace notes cremated remains typically weigh about 3-5% of the pet's original body weight.
Sources for the statistics above: American Pet Products Association (APPA) 2025 National Pet Owners Survey release and Embrace Pet Insurance.
Local attitudes to cremation
With cremation chosen for roughly 70.5%[1] of deaths in California, many families have already arranged one for a relative and know the questions to ask. They apply to a fish on a smaller scale. How is my fish tracked at every stage? Is it cremated alone, or alongside other pets with a divider between them? When do the ashes come back, and in what? A provider that answers all three without fuss is usually a safe choice.
The California percentage above is from NFDA 2024 Cremation & Burial Report state projections (via Occasional Sage) (2024) and refers to human funerals. Treat it as context for Ontario, not as a count of pets.
Heat, ice and your pond in Ontario
Whatever the season in Ontario, the freezer takes the pressure off. A fish sealed in a bag with the air pressed out, wrapped in a towel and labeled, can wait weeks or months while you find a provider that accepts fish or wait for the right day for a burial. There's no need to decide anything in the first hour.
Fish cremation quotes in Ontario: what's normal
Four things set the total for a fish in Ontario: private or communal cremation, whether you drop it off or need collection, what the ashes come back in and whether you want a certificate or keepsake. The fish itself rarely changes the price, because even a large koi sits in the lowest weight band. The ranges below are national; local quotes can sit above or below them.
The California price table breaks costs down by size; our services page explains what sits behind each line.
Free tool
Cremation cost calculator
Estimate a realistic price range for your pet's size, location and the type of cremation.
Local rules in California
You don't need a permit to have a fish cremated, but what you do with the body or the ashes can be governed by local rules. The most important one for fish keepers applies to living fish: never release a fish, or empty a pond or tank, into a creek, lake or drain. Many places restrict releasing non-native fish because they can spread disease and crowd out wildlife.
The official California local government directory lists every county and city office, which is the quickest way to find who to ask in Ontario.
We keep California's burial and scattering rules in one place: the California rules summary. Before a home burial in Ontario, also ask the city whether local ordinances add anything.
What to do when your fish dies in Ontario
- If your child's fish dies while they're at school, either leave the fish in place or put it somewhere cold, then be honest with them once they're home.
- Skip the secret replacement. Most children spot the difference, and finding out later hurts more than hearing the truth now.
- Let them see the fish if they want to, resting in a soft cloth, and give plain, simple answers to whatever they ask.
- Offer two or three choices for the goodbye, such as a flowerpot on the windowsill, a spot in the garden or a small box to keep.
- Set a time for the goodbye, giving them a chance to write a card, find a stone or think of words.
- Leave the tank empty for a while before talking about a new fish, unless your child asks sooner.
Remembering your fish in Ontario
Summers in Ontario are long and hot, with August afternoons in the mid-80s and often well beyond, and the valley can hold heat into the evening. If your pet dies at home in warm months, move them to the coolest room, lay them on a towel and place ice packs wrapped in cloth along their back. In the mild winters you have more breathing room, but it still helps to decide on cremation within a day.
run the numbers with the free planning tools, or see how other readers answered in our polls, read our guides and latest articles, For a plain comparison of the choices, open services. Close to Ontario we also cover Los Angeles, San Jose, Sacramento and San Francisco; the full list for California and for the United States is a click away.
Reader polls
What would you choose?
Vote anonymously and see how other readers answered. The results are live counts from people who visit this site, so they show real opinions, not a scientific sample.
Which memorial feels right for a fish?
Tap an answer to vote and see how others answered. Anonymous.
Would you keep your fish in the freezer while you decide what to do?
Tap an answer to vote and see how others answered. Anonymous.
If you had to decide today, which aftercare would you choose for your pet?
Tap an answer to vote and see how others answered. Anonymous.
Free tools to help you plan
Cremation cost calculator
Estimate a realistic price range for your pet's size, location and the type of cremation.
Ashes weight estimator
See roughly how much ash to expect back, by species and body weight.
Aftercare options compared
Compare private, communal and water cremation with burial on cost, timing and what comes home.
Questions people ask
Is cremation common in California?
For people, yes: about 70.5%[1] of California deaths end in cremation, according to NFDA 2024 Cremation & Burial Report state projections (via Occasional Sage) (2024). Nobody publishes the same figure for pets, but in our experience pet choices in Ontario follow the human pattern closely, so cremation is the default most families here start from.
Which nearby towns can I compare with Ontario?
The closest communities we cover are Montclair (about 3 miles), Upland (about 4 miles) and Rancho Cucamonga (about 4 miles). Providers based in those places often serve Ontario too. Ask each one for a written total that includes collection, so the distance is priced in.
Where are the providers that serve Ontario actually based?
Some are local, and some run from Fontana, about 12 miles away. That is normal for a city this size. What matters is the collection time they quote for Ontario and whether the drive is priced into the total, so ask both up front.
What can I keep if my fish was too small to leave ashes?
Plenty. A framed photo, a painting or print of the fish, its favorite tank ornament, a plant grown over a garden burial or a painted stone all work. Some crematories offer a token vial with a certificate, though the contents may be mostly from the chamber. Ask what's inside before you pay, and choose whatever feels like your fish.
How do I find someone who will cremate a fish near Ontario?
Start with your vet, who will know which crematory handles their small animals. Then call that crematory directly and ask whether it accepts fish. A local fish store or koi club may know who other keepers use. You can also send us your location and we'll email options that serve Ontario.
What should I do with the other fish after one dies?
Remove the dead fish quickly, then test the water for ammonia, nitrite, pH and temperature. Check the filter, pump and heater. If readings are off, do a partial water change and hold off feeding for a day. Watch the others closely for a week. If more fish look unwell, a vet who sees fish can examine a freshly chilled body.
Sources and our estimates
- [1] The NFDA projected California's cremation rate at 70.5% for 2024. NFDA 2024 Cremation & Burial Report state projections (via Occasional Sage), 2024.
- [2] About 10 million US households keep freshwater fish. American Pet Products Association (APPA) 2025 National Pet Owners Survey release, 2025.
- [3] 13% of UK households keep an indoor fish tank. UK Pet Food (formerly PFMA) Pet Population 2026, 2026.
- [4] Embrace notes cremated remains typically weigh about 3-5% of the pet's original body weight. Embrace Pet Insurance - Bury or Cremate Your Dog? Costs, Pros & Cons, 2025.
- [5] Private cremation cost per pound falls with size in the US: roughly $9.2/lb for a 15 lb pet, $4.2/lb at 60 lb and about $4.0/lb at 100 lb. Our estimate: band midpoint price / representative weight: 0-30 lb (midpoint $137.50 / 15 lb) = $9.17/lb; 51-70 lb ($250 / 60 lb) = $4.17/lb; over 90 lb ($400 / ~100 lb) = $4.00/lb. How we calculate.
Get koi and fish aftercare options by email
Tell us what you need and where you are. We'll reply by email with clear options and prices so you can decide in your own time.