Celestial Pearl Danio

(3 customer reviews)

Last time this was in stock, it was £4.99£5.99

Common Name: Celestial Pearl Danio

Latin name: Danio margaritatus

Latin Name Translation: “Danio margaritatus ” translates to “pearl-like Danio.”

Synonyms: Galaxy Rasbora, Microrasbora sp. “Galaxy”

Tank Bred: The Celestial Pearl Danio is available in both wild-caught and tank-bred forms. Tank-bred specimens are more commonly found in the aquarium trade.

Distribution: The Celestial Pearl Danio is naturally occurring in the shallow forest streams and peat swamps of the Rakhine State in Myanmar (Burma).

Max Size: The Celestial Pearl Danio grows to a maximum size of approximately 1 inch (2.5 cm) in length.

Lifespan: They have an average lifespan of 2 to 4 years, although with proper care, they can live longer.

Temperature Range: They prefer a temperature range of 72°F to 78°F (22°C to 26°C).

pH Range: They thrive in slightly acidic to neutral water with a pH range of 6.0 to 7.5.

KH Range: The recommended carbonate hardness (KH) range for Celestial Pearl Danios is 2 to 10 dKH.

Care Level: Celestial Pearl Danios are generally considered to be of moderate care level. They require stable water conditions and regular water parameter monitoring.

Lighting Preference: They prefer moderate lighting conditions in the aquarium. Dim or subdued lighting with some areas of shade is ideal to replicate their natural habitat.

Suitable for Planted Tanks: Celestial Pearl Danios are well-suited for planted tanks as they do not disturb or uproot plants. However, ensure the presence of open swimming areas.

Preferred Food: They are omnivorous and accept a wide variety of foods. Their diet should include high-quality dry flakes or pellets, as well as small live or frozen foods like brine shrimp, daphnia, and micro worms.

Behaviour: Celestial Pearl Danios are peaceful and social fish. They are active swimmers and tend to occupy the mid to upper levels of the aquarium.

Discoverer: The Celestial Pearl Danio was discovered by Tan Heok Hui, a fish biologist from Singapore, in 2006. It was formally described and named Danio margaritatus in the same year.

Interesting Facts:

  • Celestial Pearl Danios are popular for their vibrant colours, including iridescent blue-green bodies, orange-red fins, and speckles reminiscent of stars (hence the common name “Celestial”).
  • Despite their small size, they are known for their intricate patterns and captivating appearance.
  • In their natural habitat, they are found in slow-moving waters with dense vegetation, often among fallen leaves and branches.
  • They are best kept in small groups of at least six individuals to encourage natural behaviours and reduce stress.
  • The breeding behaviour of Celestial Pearl Danios is fascinating, with males displaying vibrant colours and engaging in courtship rituals to attract females.
  • They are considered a bit delicate in terms of care, requiring stable water conditions, regular maintenance, and a well-established aquarium setup.

Earn up to 6 Points.

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Quantity Discount Discounted price
6 - 11 10% -
12 - 21 12.5% -
22 - 99 15% -
100 + 20% -

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Aquarium plants can be shipped under the same shipping rules as dry goods.

Free shipping on orders over £50 (may exclude some aquariums)  Geographical restrictions may apply

LIVESTOCK = Fish, Critters and Corals

Minimum order value £30Delivery charge £19.99. Delivery days Are Varied At The Moment.  We will contact you to confirm your delivery day. Some geographical restrictions apply See shipping

Aquarium Plants: Are shipped the same as and can be mixed with Dry goods *Free shipping on orders over £50 or £6.99 for orders under £50. Some geographical restrictions may apply.

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The Celestial Pearl Danio, also known as Galaxy Rasbora, is a breathtaking jewel of the aquatic world. Its slender body is adorned with a mesmerizing palette of vibrant hues. Picture an artist’s brush delicately blending shades of electric blue and emerald green, creating a harmonious symphony of colours that seem to dance under the shimmering aquarium lights. The luminous scales reflect the light, giving the fish an ethereal glow. A closer look reveals the intricate pattern of pearly spots scattered across its body, reminiscent of a starry night sky. The fins, ablaze with fiery oranges and reds, provide a stunning contrast against the iridescent backdrop. Seeing these captivating creatures in person is like witnessing a living work of art, a captivating masterpiece that enchants and delights the eyes.

THE BIG QUESTION??? is The Celestial Pearl Danio AkA Galaxy Rasbora A Danio or a Rasbora?

It is most definately a DANIO

The Celestial Pearl Danio AKA Galaxy Rasbora, scientifically known as Danio margaritatus, has been the subject of taxonomic debate and confusion in the aquarium community. Initially, this species was described as a member of the Rasbora genus by Kottelat and Witte in 1999. They named it “Microrasbora sp. ‘Galaxy’.” However, further examination and research led to a reclassification.

In 2008, Dr. Tan Heok Hui, a fish taxonomist, reassessed the species and determined that it should be classified under the Danio genus. The revised name, Danio margaritatus, was proposed and widely accepted. This correction in taxonomy helped clarify the relationship of the Celestial Pearl Danio with other members of the Danio genus. So Galaxy Rasbora is totally wrong

Danio margaritatus, Natural Habitat:

In their natural habitat, the Celestial Pearl Danios inhabit shallow forest streams and peat swamps. These environments are characterized by slow-moving waters and an abundance of vegetation. Fallen leaves, branches, and roots create hiding spots and provide shelter for these fish. The waters are often stained with tannins, resulting in a slightly acidic to neutral pH. The presence of dense vegetation, including submerged plants and floating debris, offers protection and foraging opportunities.

Our Celestial Pearl Danio are Tank Bred Heres Why:

Our Celestial Pearl Danio (Danio margaritatus) specimens available in the aquarium trade are primarily tank bred. This practice of breeding them in captivity has become crucial for several reasons, one of which is the conservation of their wild populations.

By relying on captive breeding programs, we can help reduce the demand for wild-caught specimens, alleviating the pressure on their natural habitats. The wild populations of Celestial Pearl Danios are limited and vulnerable due to habitat loss and overcollection for the aquarium trade. The increased popularity of tank-bred specimens has contributed to the conservation efforts by reducing the need to collect from the wild.

Tank breeding also offers several benefits. It allows for the selection and breeding of individuals with desirable traits, such as vibrant colours and robust health. This selective breeding helps maintain and enhance the genetic diversity of the captive population. Furthermore, tank-bred specimens are generally more acclimated to aquarium conditions, making them hardier and more adaptable to captive environments.

By supporting the availability and purchase of tank-bred Celestial Pearl Danios, aquarists can actively participate in the conservation of this species. It not only ensures the sustainability of their population in the wild but also provides enthusiasts with the opportunity to appreciate and enjoy these captivating fish without negatively impacting their natural habitats.

Keeping Celestial Pearl Danio Healthy:

The care level for Celestial Pearl Danios is considered moderate. They require stable water conditions and regular monitoring of water parameters. Provide them with a well-maintained aquarium with a minimum size of 10 gallons (37 litres). Maintain the water temperature between 72°F and 78°F (22°C and 26°C) and the pH range between 6.0 and 7.5. Keep the carbonate hardness (KH) between 2 and 10 dKH. Perform regular water changes and ensure proper filtration to maintain water quality.

Special Requirements and Feeding:

Celestial Pearl Danios are omnivorous, and their diet should consist of a balanced mix of high-quality dry flakes or pellets. Supplement their diet with small live or frozen foods, such as brine shrimp, daphnia, and micro worms. Offer a variety of food types to ensure they receive proper nutrition. They will also graze on algae and small organisms in the aquarium. Ensure that the food is appropriate in size for their small mouths.

How Many Should I Keep:

Celestial Pearl Danios are social fish that thrive in the company of their own kind. It is recommended to keep them in small groups of at least six individuals or more. This helps promote natural behaviour, reduces stress, and enhances their overall well-being.

Extremely Popular Fish, Why?

Celestial Pearl Danios AkA Galaxy Rasbora are highly sought after for several reasons. Their vibrant and striking appearance, small size, and peaceful nature make them a popular choice among aquarists.

Their distinctive pattern of iridescent blue and orange spots on a shimmering silver body is captivating and adds a touch of elegance to any aquarium. Their small size, typically reaching about 1 inch (2.5 cm), makes them suitable for both small and large tanks, allowing aquarists with limited space to enjoy their beauty.

These fish are known for their peaceful and non-aggressive behaviour, making them compatible with a wide range of tank mates. Their calm demeanour and lack of territoriality create a harmonious community tank environment.

Their active and playful nature adds liveliness to the aquarium, as they constantly swim and explore their surroundings. Watching them dart in and out of plants and interact with each other can be a delightful spectacle.

Lighting Preference:

Celestial Pearl Danios often wronglt called Galaxy Rasbora prefer moderate lighting conditions in the aquarium. Provide them with a well-lit tank, but also incorporate areas of shade or floating plants to mimic their natural habitat. This combination of light and shade helps create a visually appealing and comfortable environment for the fish.

Suitable Tank Mates:

Celestial Pearl Danios are peaceful and can coexist with other small, non-aggressive fish species. Good tank mates include other small rasboras, tetras, and peaceful dwarf shrimp. Avoid housing them with larger or aggressive fish that may intimidate or harm them.

Breeding Celestial Pearl Danio:

Breeding Danio margaritatus, commonly known as Celestial Pearl Danio, can be a rewarding experience for aquarists. Here are some detailed insights into their breeding process:

  • Breeding Setup: To encourage breeding, provide a well-maintained aquarium with appropriate water parameters. Use a separate breeding tank or provide suitable breeding media, such as fine-leaved plants like Java moss or spawning mops, where the fish can deposit their eggs.
  • Conditioning: Before attempting to breed, it’s important to condition the adult Celestial Pearl Danios. Offer them a varied diet of high-quality foods, including live or frozen foods like brine shrimp or daphnia, to ensure they are in optimal breeding condition.
  • Temperature and Water Quality: Maintain the water temperature between 75-79°F (24-26°C) for breeding. Ensure the water quality is excellent, with proper filtration and regular water changes to simulate their natural habitat.
  • Spawning Behavior: Celestial Pearl Danios are egg scatterers, meaning they lay adhesive eggs that stick to plants or other surfaces. The males will display their vibrant colors and engage in chasing and courtship behavior towards the females. During spawning, the male will position himself next to the female, and the female will release her eggs while the male fertilizes them.
  • Egg Collection: After spawning, it’s advisable to remove the adult fish from the breeding tank to prevent them from consuming the eggs. Carefully inspect the plants or breeding media to locate the adhesive eggs. Gently transfer the eggs to a separate container or incubation setup to ensure their safety and optimal hatching conditions.
  • Incubation and Hatching: Transfer the eggs to a separate container with suitable water parameters matching the main tank. Maintain optimal water temperature and provide gentle aeration. The eggs will typically hatch within 24-48 hours, depending on water conditions.
  • Fry Care: Once the fry hatch, they are tiny and require microscopic foods, such as infusoria or liquid fry food, for the first few days. As they grow, gradually introduce finely crushed flake or baby brine shrimp to their diet. Ensure proper water quality and perform regular water changes to keep the fry healthy and thriving.

Breeding Celestial Pearl Danios can be challenging due to their specific requirements and the need for appropriate breeding setup and conditions. However, with patience, proper care, and attention to their needs, you can increase the chances of successful breeding and enjoy the beauty of their offspring in your aquarium.

Sexual Dimorphism:

Male and female Celestial Pearl Danios exhibit subtle differences in appearance. Males are generally more colourful and vibrant, with deeper shades of blue-green and brighter orange-red fins. They also have a more elongated dorsal fin. Females, on the other hand, tend to be slightly larger and have a rounder belly. While these differences exist, they can be challenging to discern, especially in younger or less mature individuals.


In proper aquarium conditions, Celestial Pearl Danios can live for about 3 to 5 years. Providing them with a suitable environment, a balanced diet, and proper care can contribute to their longevity.


The Celestial Pearl Danio is native to a limited region in Myanmar (formerly Burma) in Southeast Asia. It was initially discovered in a small area near Hopong village in the Shan State. However, due to its popularity in the aquarium trade, it has been widely distributed and bred in captivity. It is essential to note that while captive-bred populations are readily available, efforts to conserve and protect the species in its natural habitat are crucial.


The Celestial Pearl Danio, also known as Galaxy Rasbora, is a small and visually striking fish with iridescent blue-green bodies and orange-red fins. They prefer well-maintained aquariums with stable water conditions, moderate lighting, and the company of their own kind. They have a moderate care level and require a balanced diet of high-quality dry flakes or pellets, supplemented with live or frozen foods. Celestial Pearl Danios are peaceful and suitable for community aquariums with other small, non-aggressive fish species. They can be bred in separate breeding tanks with appropriate conditions. While they are relatively delicate in terms of care, providing them with the right environment and attention can ensure their health and longevity.

3 reviews for Celestial Pearl Danio

  1. Denise parr (verified owner)

    I bought some of these little fish in November, they are really lovely to watch swimming around. I enjoy watching them so much I have just ordered some more . Came well packaged , followed all instructions on delivery, so I have happy fish . Thank you

  2. Rennie Lee (verified owner)

    Also got some of these, great peaceful little fish, and hardy, I have some in my tropical tank, and some in my temperate tank- they seem to do equally as well.

  3. Anne Carnelley – Lamb (verified owner)

    I ordered a group of these to add to ones I already had. They arrived healthy and settled quickly into the quarantine tank.
    Clear directions are provided to help you acclimatise them. These are beautiful, peaceful fish and a joy to watch.

    I have had difficulty with new Celestial Pearl Danio being picky eaters, in the past, so I contacted Abbyss to ask what brand etc they had been feeding. I received a response within the hour and ordred the same food. This arrived rapidly too.
    So far these fish seem happy and active and are eating well. Very happy with the fish I have received and the service has been great.

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Dry Goods Delivery.

The store has provided information regarding their order dispatch and estimated delivery times. Here are the key details:

  1. Dispatch Timeframe: Orders placed before 2pm will be dispatched on the same day. Orders placed after 2pm will be dispatched on the next working day.
  2. Delivery Date and Time Guarantee: While the store aims to dispatch orders promptly, they cannot guarantee a specific delivery date and time. As the delivery process relies on couriers, there may be factors beyond their control that could affect the delivery timeframe.
  3. 1st Class Mail: For orders sent via 1st Class mail, the aim is to have them delivered on the next working day after dispatch.
  4. 2nd Class Mail: Orders sent via 2nd Class mail typically take approximately 2-3 working days for delivery after dispatch.
  5. APC Next Day Delivery: APC Next Day delivery is available for UK mainland postcodes. It is usually delivered on the next working day after dispatch. However, please note that items being delivered to more remote areas may require additional time for delivery.

It’s important to keep in mind that while the store strives to provide efficient delivery services, unforeseen circumstances or external factors could potentially impact delivery times. For further details or specific inquiries about delivery, customers should refer to the store’s terms and conditions or contact the store directly.

Livestock Delivery.

The store maintains specific policies regarding the delivery of livestock. Here are the key points:

  1. Licensed Livestock Courier: The store exclusively uses a licensed livestock courier for shipping fish and coral. This approach is chosen to ensure responsible and ethical transportation of the livestock.
  2. Livestock Shipping Fee: The livestock shipping fee charged to customers of £19.99 does not cover the true cost, and therefore, there is a minimum spend requirement of £30.00 before the option for livestock shipping becomes available.
  3. Pre-Arranged Delivery: The store never ships livestock without first arranging a suitable delivery day. Before dispatching the livestock, the store must confirm the agreed-upon delivery day with the customer.
  4. Saturday Delivery Confirmation: Customers who choose Saturday delivery must have their availability confirmed for the upcoming Saturday before the store sends out the livestock. This confirmation ensures that the livestock can be received promptly.
  5. Failure to wait for livestock: Not waiting for livestock, even if there is a reasonable delay, or cancelling an order after it has been dispatched will lead to you incurring charges for an emergency return to the base. Additionally, any losses of livestock will also be charged to you. Please be aware that the items you are ordering are living creatures – livestock. We kindly ask that you refrain from ordering livestock if you are unable to accommodate the possibility of a delayed delivery.

    These terms and conditions are a fundamental aspect of our policy. Our primary goal is to dissuade individuals who could react negatively to a delayed delivery and subsequently request order cancellations. It is of utmost importance to underscore that your order pertains to living creatures, not mere inanimate objects. In the event of an occasional delay, it is crucial that you respond in a rational and responsible manner, taking into account the welfare of the livestock. We kindly request that you refrain from placing an order for livestock if you tend to react strongly to such situations. By proceeding with the order of livestock, you indicate your acceptance and agreement to abide by these specified terms and conditions.

  6. Signature Requirement: Livestock deliveries require a signature upon receipt and cannot be left in a safe location. This precaution ensures proper handling and the well-being of the livestock.
  7. Geographic Restrictions: The courier has strict geographic restrictions for livestock deliveries. Unfortunately, deliveries to Northern Ireland, Republic of Ireland, Isle of Man, Isles of Scilly, Channel Islands, and certain Scottish offshore postcodes may not be possible. Customers are encouraged to contact the store via email to confirm if livestock delivery is available in their area.
  8. Minimum Order Value and Order Cancellations: The store has a minimum order value of £30 for livestock shipping. Additionally, the store reserves the right to cancel orders that are deemed high-risk or involve a high number of single tropical freshwater fish species.

It is essential for customers to familiarize themselves with these policies before making a purchase. For more detailed information or specific inquiries, customers should consult the store’s terms and conditions or reach out to the store directly for clarification.

Livestock Geographical Exemptions.

The store has specific geographical exemptions for livestock deliveries. Here is a list of the areas and postcodes where livestock delivery is not available:

  1. Islands: Livestock cannot be delivered to the Shetlands, Channel Islands, and Isle of Man.
  2. Postcodes: Livestock delivery is not available to the following postcodes:
  • AB30 to AB39, AB41 to AB45, AB51 to AB56
  • DD8 to DD10
  • BT all
  • DG3 to DG9, DG12 to DG14
  • KA18 to KA19, KA26, KA29 to KA30
  • HS all
  • IM all
  • JE all
  • ZE all
  • KW15 to KW17
  • TD9
  • FK17 to FK21
  • GY all
  • KA26, to KA28
  • PA20 to PA38, PA41 to PA49, PA60 to PA61, PA76 to PA78
  • TR21, to TR25
  • PH3 to PH26, PH30 to PH44
  • IV all

Customers residing in these areas should be aware that livestock delivery is not available to their location.

We can ship livestock to the Isle of Wight, this area is subject to a surcharge.

For further information or specific inquiries about livestock delivery to a particular area, customers are advised to contact the store directly for clarification.


According to the store’s policy, customers have the right to cancel an order within 14 working days of receiving the goods. To initiate the cancellation, the goods must be returned to the store in new and unused condition, adhering to their Returns Policy.

Important points regarding the return process are as follows:

  1. Return Condition: The goods must be returned in new and unused condition, as originally received. It is important to ensure that the goods are in the same condition as when they were sent out.
  2. Return Timeframe: The goods must be received by the store within 21 days of notifying them about the cancellation. During this time, customers are responsible for any loss or damage that may occur during the return shipping process.
  3. Refund Process: Once the store receives the goods in new and unused condition, they will initiate the refund process. The purchase price will be refunded to the customer.
  4. Return Condition Inspection: If the returned goods arrive in a condition that is less than what they were sent out in, the store reserves the right to return the goods to the customer, and no refund will be processed.

It is essential for customers to carefully review the store’s Returns Policy and follow the specified procedures to ensure a smooth and successful return and refund process. For more detailed information or specific inquiries, customers should consult the store’s terms and conditions or contact the store directly.


According to the store’s return policy, the following guidelines should be followed for returning goods:

  1. Use Returns Form: Customers need to use the store’s provided returns form to initiate the return process. This form helps the store acknowledge that the goods are being sent back.
  2. Return for Testing: If the goods are being returned for testing, the customer is responsible for covering the return shipping expenses.
  3. Refund of Postage Fees: The store will only refund postage fees if the order arrives damaged or becomes faulty within the first 4 weeks of purchase. Proof of posting is important, and customers should ensure the goods are well-packed and obtain proof of posting as the goods remain their responsibility until received by the store.
  4. Refund of Postage Costs for Replacement: If goods are being returned within 7 days of purchase under the Replacement Policy, the store can refund postage costs. However, the customer needs to agree on a delivery service with the store in advance, and only standard or tracked shipping fees will be refunded. The store cannot refund the cost of any special delivery service.
  5. Non-Refundable Postage: Postage costs for goods returned for any other reason than those mentioned above are non-refundable. The store reserves the right to deduct the original postage cost from any applicable refund.
  6. Mistaken Purchases: If a customer has made a mistake in their purchase, they need to return the goods to the store. The customer is responsible for the return shipping costs in such cases.

It is important for customers to carefully follow the store’s return procedures and terms and conditions. For further details or specific inquiries, customers should refer to the store’s website or contact the store directly.


If customers receive faulty goods, the following guidelines apply according to the store’s policy:

  1. Notification of Faulty Goods: Customers must notify the store within 7 working days if they receive faulty goods. This notification should be made as soon as possible.
  2. Replacement Parts: If possible, the store will dispatch replacement parts for the faulty goods.
  3. Return of Goods: If replacement parts are not possible, the store may request customers to return the faulty goods in accordance with their Returns Policy. The specific return procedures and conditions should be followed.
  4. Verification of Damage: Once the store receives the returned goods, they will verify the damage. If the damage is confirmed, the store will supply the required replacements.
  5. Return Postage Costs: If the goods returned to the store are found to be in good working order, the store is not able to refund the return postage costs. Additionally, the store reserves the right to deduct their original postage cost from any applicable refund.
  6. Consequential Loss or Damage: The store cannot take responsibility for any consequential loss or damage that arises directly or indirectly from the goods supplied.

Customers should carefully review and adhere to the store’s Returns Policy and procedures for returning faulty goods. For further clarification or specific inquiries, customers should consult the store’s terms and conditions or contact the store directly.

Manufacturer’s Guarantees

The store works in collaboration with manufacturers to ensure that their guarantees are honored, and they make their best efforts to resolve issues within the warranty period. The following guidelines apply to refunds and replacements:

  1. Postage Costs under Manufacturer’s Guarantee: Postage costs can only be refunded if the goods are returned to the store within 7 days of the original purchase, as per the manufacturer’s guarantee.
  2. Refund of Postage Costs for Faulty Goods: The store will refund postage costs for guarantee/warranty returns only if the product becomes faulty within the first 4 weeks of receipt.
  3. Replacements with Manufacturer Authorization: Replacements, whether parts or goods, can only be offered when authorized by the manufacturer. Customers should contact the store for further guidance in such cases.
  4. Prior Approval for Returns: Goods should not be returned to the store without prior approval. Customers need to contact the store and obtain approval before returning any items.
  5. Replacement of Glass or Ceramic Items: Glass or ceramic items can only be replaced if the store is notified within 48 hours of receiving the delivery.
  6. Replacement of Glass Bulbs/Tubes: Glass bulbs or tubes can only be replaced if they become faulty within 14 days.

Customers should note and adhere to these guidelines to ensure a smooth and efficient resolution of any issues with their purchased items. For specific inquiries or further information, customers are advised to refer to the store’s terms and conditions or contact the store directly.


According to the store’s policy, customers have the following responsibilities regarding breakages:

  1. Checking Goods on Arrival: It is the customer’s responsibility to thoroughly check the goods upon arrival for any damage. This should be done before signing for the parcel. If the parcel appears damaged, it is advised not to sign for it.
  2. Reporting Breakages: Any breakages or damages must be reported to the store within 48 hours of receiving the goods. It is important to promptly notify the store to initiate the resolution process.

By carefully inspecting the goods upon arrival and reporting any breakages within the specified timeframe, customers can ensure that appropriate actions are taken to address the issue. For specific instructions on reporting breakages or further information, customers should refer to the store’s terms and conditions or contact the store directly.