Discus Care Sheet
AdvancedSymphysodon aequifasciatus · cichlid
Discus are stunning but require expert care with stable warm water, large tanks, and a varied diet. They thrive in groups and are sensitive to water quality changes.
Quick care stats
Adult size8-10 inches
Lifespan8-10 years
Min tank size55 gallons
Water temp82-86°F
pH6.0-7.0
Hardness1-4 dGH
Temperamentpeaceful, but shy and sensitive
Group / schoolinggroup of 6+
Tank matesCardinal tetras, rummy nose tetras, corydoras, and peaceful plecos
DietHigh-quality flakes or pellets supplemented with frozen bloodworms, brine shrimp, and beef heart; feed 2-3 times daily
What you need (full setup)
🔧 Aquarium tank (55+ gallons)Provides ample swimming space and stable water conditions for a group of discus.🔧 Canister filterEfficient mechanical, chemical, and biological filtration with high flow to handle waste.🔧 Adjustable heater (200W+)Maintains consistent high temperature (82-86°F) critical for discus health.🔧 ThermometerMonitors water temperature to prevent dangerous fluctuations.🔧 Fine sand substrate (or bare bottom)Sand is gentle on discus and easy to clean; bare bottom is even easier for juveniles.🔧 Water conditionerRemoves chlorine, chloramines, and heavy metals from tap water.🔧 Liquid test kit (pH, ammonia, nitrite, nitrate)Essential for monitoring water quality and detecting toxic spikes early.🔧 Driftwood and live plants (Java fern, Anubias)Provides hiding spots and helps maintain water quality; discus feel secure with cover.
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Common health issues
- Ich
- Hole-in-the-head disease
- Bacterial infections
- Stress from poor water quality
⚠️ For any sign of illness (not eating, lethargy, swelling, retained shed), see a qualified exotics vet. Care sheets are general guidance only.