Cobalt Blue Discus 5cm

The king of the aquarium, Discus fish are one of the most beautiful freshwater fish available for the home aquarium.  Peaceful, but larger than most tropical fish, these fish light up the room they are in under the right lighting.

Considered notoriously tricky to care for, but so rewarding when kept correctly, Discus fish are the pride and joy of those that keep them. (see below the main requirements)

There are many color variations available thanks to selective breeding, and interestingly it can take up to 6 years for them to reach their best colors. They can live up to 15 years, but most live for around 10 years.

They are often bred in southern Asia, but they originate from the Amazon where they populate flood plains and cling to breaks in the water flow in large schools.


Typical Behavior

Discus fish are very peaceful, avoiding conflict through escape and intimidation. In most tanks, they are one of the largest and brightest fish. They are a schooling fish, and in large groups can create a wall of patterns across the tank. Like all cichlids, there can be some competition in the shoal and a pecking order will be established. This means smaller fish will need to be monitored to make sure they are able to eat.

They tend to stay in the mid-levels but will rise to the top and dip to the bottom to forage; so they can easily dominate all levels of the tank. They do prefer to be free swimming but need the option to be close to cover such as large driftwood or plants in the tank.

They tend to stay in the mid-levels but will rise to the top and dip to the bottom to forage; so they can easily dominate all levels of the tank. They do prefer to be free swimming but need the option to be close to cover such as large driftwood or plants in the tank.

So what is important to keep your discus healthy and happy

These fish require higher temperatures than most fish 27-31°C. Keeping this warmer temperature will reduce stress and the chance of illness and deaths.

Amazonian water is soft and slightly acidic, with a pH between 6 and 7. The water in your aquarium needs to be de-chlorinated, and treated with formulas that neutralize your tap water. The flow should be weak, this can be broken using a spray bar or by using driftwood or ornaments.

They prefer soft to medium sediment, as they often search for food on the substrate and larger pieces could injure them as they forage.

Plants, like the Amazone Sword  or Darf Hairgrass are easy to add to your tank and provide oxygen to your fish. Plants also act as a nutrient sink, meaning drops in water quality are rarer.

What Size Tank Do Discus Need?

As these fish need to be in schools of at least 5, 180Lis the smallest tank they will thrive in although they prefer larger tanks upwards of 370L means there will be less drastic changes in water conditions and they will have the space they desire.

One Discus fish per 30L is ideal.

  • 1x Cobalt Blue Discus 5cm

DOA Policy for Live Fish shipping

At Aquaholics, we place utmost importance on the careful shipping of live fish to ensure their safe arrival. Our commitment to quality includes taking various measures during transit. Each fish bag is infused with medical-grade oxygen and an ammonia-neutralizing solution. In colder periods, we also utilize heat packs to maintain optimal temperatures. However, we understand that unforeseen circumstances can sometimes lead to unfortunate outcomes. To provide you with peace of mind, we have implemented a Dead-on Arrival (DOA) policy that ensures you are covered in such situations.


  1. Owner's Presence: It is essential for the owner or an authorised representative to be available at the provided shipping address to receive the fish. If no one is available, the courier will leave your parcel in a safe space as all fish orders are shipped ATL.
  2. Shipping Address: Please provide a valid street address for shipping. Ensure the address is accurate and complete to avoid any delivery issues.
  3. Reporting DOA: If you receive a fish that is dead on arrival, please notify us promptly. Within 2 hours of receiving the fish, send an email to our customer support team. Include the following details in your email:
    • Name: Your full name
    • Order Number: The unique order number associated with your purchase
    • DOA Fish Picture: Attach a clear picture of the deceased fish

Terms and Conditions:

  1. Timely Notification: Please make your DOA claim within 2 hours of receiving the fish. Claims submitted after this timeframe will not be eligible for compensation.
  2. Proper Documentation: Ensure that your email includes accurate and complete information, including your name, order number, email, and a clear picture of the deceased fish. Incomplete or inaccurate information may delay the processing of your claim.
  3. Verification: Our customer support team will review the provided information to verify the DOA claim. Once the claim is validated, we will proceed with the appropriate compensation.
  4. Compensation Options: In the event of a DOA, we offer two compensation options: a) Store Credit: You will receive a store credit equal to the value of the deceased fish, which can be used for future purchases. b) Refund: We can issue a refund for the value of the deceased fish, processed through the original payment method used for the purchase.
  5. Shipping Costs: Please note that shipping costs are non-refundable unless the entire order is considered a DOA.
  6. Conditions Apply: Our DOA policy covers only fish that are dead upon arrival. It does not apply to fish that perish after successful delivery and acclimation to their new environment.

We are committed to providing the best possible experience for our customers and ensuring the well-being of our live fish. If you have any questions or concerns regarding our DOA policy, don't hesitate to get in touch with our customer support team at [email protected] , and we will be glad to assist you.



Note: The terms and conditions outlined in this DOA policy are subject to change without prior notice. We recommend reviewing the most up-to-date policy on our website or contacting our customer support team for any updates.

Thank you again for allowing us on your aqaurium journey.


Jesse Elstak


  • Scientific Name : Symphysodon
  • Common Names : Discus
  • Mature Size : 20 cm,
  • pH : 6.0 - 7.0(but can be higher.)
  • Temperature : 27°C - 31°C
  • Origin / Habitat :Amazon Farm Raised
  • Temperament / Behavior : Peaceful but might get aggressive when breeding
  • Sex - Un Sexed
SKU LF-Discus_cobaltblue_5cm
Barcode # 7427105032775
Brand Live Fish
Shipping Weight 0.1000kg
Shipping Width 0.100m
Shipping Height 0.100m
Shipping Length 0.100m
Shipping Cubic 0.003000000m3


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