Black Diamond Stingray – Proven Breeder – Approx 14″

A Black Diamond Stingray – Proven Breeder – Approx 14″ is one of the most coveted large freshwater specimens in the Canadian aquarium hobby, prized for its jet-black disc, crisp white spotting, and commanding presence on the tank floor. If you have been searching for a mature, sexed, breeding-age stingray rather than an unproven juvenile, this listing is built for you. Canadian Aquarist offers this proven breeder to serious aquarists across Canada, with careful packing and reliable aquarium fish delivery from coast to coast.

Why Serious Aquarists Want a Proven Breeder Black Diamond Stingray

Juvenile stingrays are a long-term gamble. A proven breeder is a known quantity: it has reached sexual maturity, it has bred successfully in captivity, and its health and temperament have already been tested. For keepers who want to move straight into a breeding project, that head start is worth far more than the price difference.

The Black Diamond stingray (Potamotrygon leopoldi) originates from the Xingu River basin in Brazil and is widely regarded as the most striking of the freshwater stingrays. Its deep black base colour and tight white spots make it a genuine centrepiece fish, and mature females in particular are highly sought after by hobbyists who buy ornamental fish online with breeding in mind.

At approximately 14 inches across the disc, this is a mature adult, not a grow-out project. Expect a substantial, heavy-bodied animal that needs space from day one.

What “Proven Breeder” Actually Means

In practice, a proven breeder stingray has produced viable young, or has been part of a confirmed breeding pair, in a home or facility aquarium. This is different from a “mature” or “adult” stingray, which has simply reached adult size. Proven status tells you the animal has the genetics and condition to reproduce again.

Worth noting: stingray breeding in Canada is legal for personal hobby keeping, but several provinces regulate possession of Potamotrygon species. Check your provincial rules before ordering, and confirm you can legally keep the animal where you live.

Tank Requirements for a 14-Inch Stingray

A stingray at this size needs a footprint measured in feet, not gallons alone. Plan for a minimum of 72 inches by 30 inches of open sand floor, with a system volume of at least 180 to 220 gallons for a single adult. A 300-gallon or larger setup is far more comfortable and gives you room for a second animal later.

Substrate and Filtration

• Substrate: Fine, rounded sand only. Sharp gravel damages the ray’s underside and can cause infections.
• Filtration: Heavy mechanical and biological filtration is essential. Stingrays are messy eaters with a high bioload.
• Water flow: Moderate, with calm resting areas. Blast-flow across the whole floor stresses the animal.
• Cover: Secure, weighted lids. Stingrays can and do jump.

Water Parameters

Target a stable pH of 6.5 to 7.2, soft to moderately hard water, and a steady temperature between 78°F and 82°F (26°C to 28°C). Consistency matters far more than chasing a “perfect” number. Mature stingrays tolerate stable conditions well and react badly to swings.

Ammonia and nitrite should read zero at all times. Nitrate is best kept under 20 ppm with weekly large water changes of 30 to 50 percent.

Feeding a Proven Breeder Stingray

A mature ray eats substantially. Offer market shrimp, tilapia, smelt, earthworms, and quality carnivore pellets. Feed once or twice daily, and remove anything uneaten within a few hours to protect water quality.

Avoid feeder goldfish, which carry disease risk and poor nutritional value. A varied diet keeps condition, colour, and breeding readiness high.

Tank Mates and Compatibility

Choose tank mates that live above the ray’s level and grow large enough not to be swallowed. Suitable options include large silver dollars, big Geophagus species, peaceful catfish such as Panaque plecos, and sizable characins.

Avoid aggressive bottom dwellers, small fish, and anything that nips at the ray’s disc. Stingrays are peaceful but will defend themselves with a venomous tail spine. Always handle with a net and gloves, and never lift a mature ray by the tail.

Buying Live Aquarium Fish Online in Canada

Buying a fish this valuable online comes down to the seller’s packing and shipping discipline. A well-run aquarium fish shop online ships stingrays in double-bagged, oxygen-filled liners inside insulated boxes, with heat or cold packs as the season demands.

Here is what to expect from a reputable Canadian seller:

• Confirmed health and feeding before dispatch
• Clear communication on shipping day and tracking
• A live arrival guarantee with defined claim conditions
• Species-level identification rather than generic labelling

Before you buy freshwater fish online, confirm the seller’s guarantee in writing and know what is required of you on arrival. Photograph the box and the bag before opening if anything looks wrong. Our live arrival guarantee spells out those steps clearly.

Acclimation on Arrival

Float the bag for 20 to 30 minutes to equalise temperature, then drip-acclimate over 45 to 60 minutes. Net the ray into the tank rather than pouring bag water in. Keep lights off for the first day and offer food the following morning.

Do not rush this step. A stressed stingray settling into a new system is the single biggest risk in the first week.

Why Buy From Canadian Aquarist

Canadian Aquarist is a Canadian-run source for exotic aquarium fish for sale, including stingrays, oddballs, and large cichlids. Every proven breeder is conditioned and observed before it is listed, so what arrives is what was described.

Shipping is arranged for safe aquarium fish delivery within Canada, with packing suited to the season and the animal’s size. If you are also setting up a grow-out or looking for smaller species, browse the wider freshwater fish collection to plan a full stocking list in one order.

Is This Stingray Right for You?

This fish suits the experienced keeper with a large, cycled, well-established system and a real interest in breeding. It is not a starter fish, and it is not a good fit for anyone without the tank footprint or the budget for serious filtration and heating.

If you have the setup and the commitment, a proven breeder at 14 inches is about as good as it gets in the Canadian hobby. Stingrays at this stage are typically long-lived, responsive, and genuinely rewarding to keep.

Frequently Asked Questions

How big does a Black Diamond stingray get?

Adults commonly reach 14 to 18 inches across the disc, with exceptional females exceeding 20 inches. This specimen is already at approximately 14 inches, so it is near full adult size.

Can I keep a stingray in a 125-gallon tank?

No. A 125-gallon tank is typically 72 by 18 inches, which is too narrow for a 14-inch ray to turn comfortably. Aim for a minimum of 72 by 30 inches of open floor space.

What does “proven breeder” mean for a stingray?

It means the animal has reached sexual maturity and has successfully produced young or been part of a confirmed breeding pair. It is a stronger indicator than age or size alone.

Do you ship stingrays across Canada?

Yes, delivery is arranged to most Canadian provinces. Provincial possession rules vary for Potamotrygon species, so confirm local regulations before ordering.

What should I feed a mature stingray?

Market shrimp, tilapia, smelt, earthworms, and quality carnivore pellets form a strong staple diet. Feed once or twice daily and remove uneaten food promptly.

Is a stingray dangerous to handle?

Stingrays carry a venomous tail spine used defensively. Handle only when necessary, use gloves and a soft net, and never lift the animal by its tail.