Discus Tropical Fish Information

Symphysodon sp.
Behaviour Peaceful, shoaling, territorial
Typical size 15cm
Max size 20cm
Tank Area Middle, all
Min Tank Size 120cm
Min Number in Tank 4
Temp Min: 26℃ Max: 30℃
Feeding Frozen, live foods, dried prepared foods. A varied diet is important
pH Range 6-7.5
Hardness vs,s,m
Discus Symphysodon sp.
  • Discus Symphysodon sp. - thumbnail
  • Discus Symphysodon sp. - thumbnail
  • Discus Symphysodon sp. - thumbnail
  • Discus Symphysodon sp. - thumbnail

Discus (Symphysodon sp.)

Discus Tropical Fish Learn all about the Discus's feeding habits and food types, its behaviour, its origins, its natural habitats, is it male or female, breeding advice and information, suitable tank mates, its sizing and growth range, minimum tank size, water PH and more. Use our fish community creator tool to plan your tank set up and ensure that the Discus is the right fish for your aquarium.

The Discus is often referred to as the 'king of aquarium fish' and many fishkeepers dedicate their interest to keeping and breeding these fish. Because of this, there is a great degree of varied information available on the care of these fish, some sources will suggest that only the experts can keep discus correctly whilst others will state that anyone can keep them. What is fact is that they need, in the long term, to be kept in soft water, a varied diet ideally fed at least a few times a day, good general water quality, and should not be kept with boisterous or aggressive fish. On occasion, loaches and algae eaters may try to feed from the discus's mucus, causing damage to the skin, although this is relatively rare. Ideally, Discus should be kept in groups, in large aquariums with other peaceful fish with plenty of open swimming space and a few hiding spots amongst wood or plants. There are several species of Discus, although the commercially bred forms usually contain genetic histories of several species.

Discus Facts

Family Cichlidae (Cichlids) | Origin South America; Amazon River basin | Breeding Egglayer. Eggs are laid and fertilized on a pre-cleaned flat or smooth area. Both parents care for the eggs and fry. The young fry feed on the parent's mucus, which contains a special secretion. | Natural Water Conditions pH 4-7, very soft to medium | Natural Habitat Quiet, heavily vegetated waters | Sexing Only possible during spawning

Discus Help and Advice

If you have a question about keeping Discus's then please use our Discus help forum. Join 100's of other fish enthusiasts with 1000's of years experience between them caring for and keeping fish like these.

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Check tank mates for the Discus fish species

You are in the thinkfish community creator for the Discus fish species, you can learn all about how the tool works in assessing fish tank mate compatibility at the link provided or use the tool tips provided to guide you. Create a test fish community that includes the Discus species and any other types of fish or crustacean you'd like to introduce - You can assess the best companions, tank size suitability, stocking levels based on filter type and volume and possible negative interactions and warnings as you build up your aquarium.

Please do check your water type for compatibility with your fish, which can be found on the Discus information box above and your local water company providers website. Don't waste your money and endanger your fish!
Tank Details
question mark  Rename your tank:
question mark  Length: (cm)
question mark  Volume: (Litres)
question mark  Filter type:

* Recent changes to stocking & filter advice October 2018
* This fishtank will only last for this session - to save your tank please Join/Log in

question mark  Max Stocking level: 0cm
0-1 months 20%: 0cm
1-3 months 40%: 0cm
3-6 months 60%: 0cm
question mark  Current stock level: 0cm
Stock percentage: 0%
question mark  Suggested maximum
fish size for your tank:
My Fishtank Quantity Stock cm

There are currently no fish in your fish tank. To add fish, you can click the 'Add the Discus to your tank' button. Or search for a different fish using the options presented above

sample fish tank
See an example tank as it would show on a user profile with enabled settings and community tanks.

To save your tank details in the Fish Community Creator you must be logged in CLICK HERE to login or create an account further down the page below

If you'd like to talk about the "Discus" with our users, then we have a buzzing community of fish enthusiasts where you can talk about tank issues, Discus fish behaviour, Discus tank stocking and any other issues related to the Discus fish or other types you may have.

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