Discus fish Plant Care
Symphysodon gunnii Broth. & Watts
Updated · Sources · How we source care data
Originating from the freshwater rivers of South America, this plant's most distinctive feature is its vibrant and unique red and green striped leaves. Plant collectors are drawn to Symphysodon gunnii for its eye-catching coloration and striking appearance, making it a prized addition to any aquatic garden.
Every 2–3 days
Medium to bright indirect light
82°F
70–80%
At a glance
How do you care for Discus fish?
Water Discus fish every 2–3 days, letting the top layer of soil dry out between waterings, and give it medium to bright indirect light. It prefers temperatures of 82°F (28°C) and above and 70–80% humidity. Fertilize it every month during the growing season.
What Is the Discus fish?
Discus fish (Symphysodon gunnii) belongs to the Pterobryaceae family within the Symphysodon genus. Discus fish is native to South America. Discus fish is also known as Pompadour fish.
Discus fish displays a low rosette, spreading growth habit, reaching up to 8 ft tall with a spread of approximately 8 ft. Discus fish produces small, inconspicuous flowers.
How Often Should You Water a Discus fish?
Symphysodon gunnii requires watering every 2–3 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 2–3 days
Let soil partially dry between waterings
What Light Does the Discus fish Need?
Discus fish thrives in medium to bright indirect light. Avoid placing Discus fish in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Medium to bright indirect light
What Temperature and Humidity Does the Discus fish Prefer?
Symphysodon gunnii grows best at temperatures of 82°F. Discus fish prefers humidity levels of 70–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
82°F
Humidity
70–80%
What Soil Mix Works Best for a Discus fish?
Rich, acidic soil with good drainage and high organic content. Good drainage is essential for Discus fish to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Discus fish?
Feed Discus fish every month during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Discus fish?
Repot every 1-2 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Discus fish?
Discus fish can be propagated through division, spores.
Is the Discus fish Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Discus fish, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Discus fish?
Discus fish is susceptible to aphids, mealybugs, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
Keep exploring plants
Discus fish is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Symphysodon genus — compare its care with other Symphysodon species on PlantoScan.
Symphysodon is part of the Pterobryaceae plant family — browse all Pterobryaceae genera and species.
Discus fish thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Symphysodon gunnii Broth. & Watts, family Pterobryaceae (first published in J. & Proc. Roy. Soc. New South Wales 49: 140 1915) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Discus fish, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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