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PEACEFUL AGGRESSIONmid LAYERFreshwater

Discus

ScientificSymphysodon aequifasciatus

Discus
SPECIMEN SERIALAQ-SPC-DISCUSVERIFIED METRIC SHEET

Key Care Metrics

Min Tank Volume
50GGallons / 189 LitersCheck Stocking Capacity →
Temp Envelope
82°-88°F28° - 31° Celsius
60°F90°F
Calculate Heater Wattage →
Acidity Envelope
5.0-6.5pH Scale Boundary
pH 5.0pH 9.0
Adult Specimen Size
8.0"Inches / 20.3 cm

Comprehensive Discus Care Guide & Tank Setup

Providing proper Discus care begins with establishing an environment that mimics their natural freshwater habitat. To guarantee optimal health, the minimum Discus tank size should be at least 50 gallons. While some sources suggest smaller volumes, a larger tank provides water chemistry buffering and crucial swimming space.

Maintaining a stable water environment is critical. The ideal Discus temperature envelope ranges from 82°F to 88°F (approx. 28°C to 31°C) with an acidity level strictly bounded between 5.0 and 6.5 pH. Fluctuations outside of these parameters can compromise their immune system.

Fish Food & Nutrition: Providing high-quality fish food for Discus is vital to preserve their vivid colors and energy levels. Offer a varied diet consisting of high-protein tropical pellets or flakes, supplemented with live or frozen treats like bloodworms, brine shrimp, and daphnia.

Husbandry & Care Profile: They require warm, soft, acidic water and frequent water changes. They are heavy waste producers that place immense strain on biological filtration, requiring robust filtration and daily care.

⏳ Discus Size & Lifespan Expectations

When planning your aquarium layout, understanding the expected Discus size is critical. The average Discus max size when fully grown reaches approximately 8.0 inches (approx. 20.3 cm). In some conditions, a particularly healthy, large specimen might grow slightly larger.

How long do they live? The typical Discus lifespan averages around several years. Specifically, With proper care, these majestic fish can live for ten to fifteen years. They require a dedicated aquarist and stable conditions to reach this age. Maintaining excellent water parameters, high-quality nutrition, and low stress will help maximize their longevity.

🧬 Discus Male vs Female Differences

Understanding sexual dimorphism is key for breeding projects and managing cohabitation. Comparing a Discus male vs female or female vs male Discus reveals clear biological and cosmetic differences.

Genders are very subtle outside of spawning. Males may develop a slight nuchal hump, and during breeding, the male's papilla is pointed while the female's is blunt.

Cohabitation & Breeding Notes: Can you put a female and male specimen together? Depending on their species behavior, housing female and male Discus specimens in the same tank requires careful setup. For highly territorial species, keep them separated. For peaceful community fish, maintain a breeding ratio of multiple females to each male to distribute attention and reduce stress.

🐠 Compatible Discus Tank Mates

Finding the right Discus tank mates is key to maintaining a peaceful community. Can this species live with other fish? The answer depends on their aggression rating (peaceful).

They must be kept in groups of six or more to distribute the natural cichlid pecking order. A spacious tank is essential to house a group of these large fish.

When choosing companion fish, ensure they share similar temperature and pH requirements. Avoid housing them with slow-moving long-finned species if they are known fin-nippers, or with very large predatory fish that might view them as food. For a full compatibility breakdown, check the custom cross-checks and ideal matches listed on this page.

🎨 Popular Discus Morphs & Varieties

In the aquarium trade, the Discus has been bred selectively to showcase a variety of eye-catching color morphs, tail shapes, and patterns. Some of the most notable strains and varieties include:

Standard DiscusWild-type DiscusSelectively bred Discus varieties

From deep blue and red shades to intricate koi, marble, or albino strains, choosing the right morph adds incredible visual character to your aquarium.

🏷️ Cost & Buying Guide

Are you looking to find a healthy Discus for sale or ready to buy a Discus online? Sourcing your fish from high-quality breeders is crucial to starting with healthy specimens.

Premium priced, with large, high-grade breeding pairs or rare color morphs commanding hundreds of dollars. The average price of a Discus varies depending on the specific color morph, fins, and strain rarity. Common varieties are widely available and can easily be purchased for under $30. Rare import show-grade specimens can cost significantly more.

When searching for a supplier nearby, check their reviews and verify that their tanks are clean and free of diseases. Healthy specimens should be alert, active, and showing bright coloration with no signs of lethargy or clamped fins. Avoid purchasing "used" or neglected setups without sanitizing them thoroughly.

✨ Unique Discus Name Ideas

Choosing a unique name for your new companion is one of the best parts of the hobby. Here are 5 unique, thematic Discus names based on their biological traits:

  • 🐟Titan
  • 🐟Goliath
  • 🐟Colossus
  • 🐟Rex
  • 🐟Mammoth

📚 Media, Art & Aquarium Ornaments

Thanks to their popularity, Discus are frequently referenced in books, movies & TV shows, and cast into art sculptures or figurines. In the hobby, they are a beloved subject for custom aquarium decor, photo prints, and artificial ornaments.

If you want to purchase species-specific aquarium decor for a Discus, prioritize live plants, smooth river rocks, and clean driftwood. If you buy artificial resin ornaments, verify they have no sharp edges or narrow gaps that could trap or injure active fish.

❓ Frequently Asked Questions

How long do Discus live?

With proper care, these majestic fish can live for ten to fifteen years. They require a dedicated aquarist and stable conditions to reach this age.

What size tank does a Discus need?

A Discus requires a minimum tank size of 50 gallons (approx. 189 liters) to ensure proper swimming space and stable water parameters.

Can you put two Discus together?

They must be kept in groups of six or more to distribute the natural cichlid pecking order. A spacious tank is essential to house a group of these large fish.

Can a Discus live with other fish?

Yes, depending on their aggression level. The Discus has a peaceful aggression level. In general, peaceful tank mates that share the same temperature (82°F to 88°F) and pH (5.0 to 6.5) requirements make the best cohabitants.

Depth Profile

Strata Depth Profile

mid Layer
Top Zone
0-10" Depth
Mid Zone
Active
Bottom Zone
20"+ Depth

Specimen biology dictates water column placement. The Discus primarily patrols the mid zone, optimizing its ecological role and feeding strategies.

Ecosystem Bioload Footprint

3.0xWaste Factor

Larger values represent higher bio-waste output, requiring higher filtration volume.

Ideal Cohabitants11 verified

Kuhli Loach

Pangio semiperfecta

Cross-Check →
Clown Loach

Chromobotia macracanthus

Cross-Check →
Rummynose Tetra

Hemigrammus rhodostomus

Cross-Check →
Ember Tetra

Hyphessobrycon amandae

Cross-Check →
Black Skirt Tetra

Gymnocorymbus ternetzi

Cross-Check →
Bala Shark

Balantiocheilos melanopterus

Cross-Check →

Caution Cohabitants4 flagged

Angelfish

Pterophyllum scalare

Cross-Check →
Behavioral caution. Angelfish is semi-aggressive and may bully, chase, or nip the fins of the peaceful Discus. Ensure the tank is large and heavily decorated.
Dwarf Gourami

Trichogaster lalius

Cross-Check →
Behavioral caution. Dwarf Gourami is semi-aggressive and may bully, chase, or nip the fins of the peaceful Discus. Ensure the tank is large and heavily decorated.
German Blue Ram

Mikrogeophagus ramirezi

Cross-Check →
Behavioral caution. German Blue Ram is semi-aggressive and may bully, chase, or nip the fins of the peaceful Discus. Ensure the tank is large and heavily decorated.
Behavioral caution. Apistogramma Hongsloi is semi-aggressive and may bully, chase, or nip the fins of the peaceful Discus. Ensure the tank is large and heavily decorated.

Fish to Avoid Pairing With Discus34 conflicts

Neon Tetra

Paracheirodon innesi

Conflict Report →
Water temperature envelopes clash. Neon Tetra requires 72-78°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Guppy

Poecilia reticulata

Conflict Report →
Water acidity (pH) parameters clash. Guppy prefers a pH of 7-8, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water temperature envelopes clash. Male Betta Fish requires 75-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Cherry Shrimp requires 65-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Bristlenose Pleco requires 73-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water acidity (pH) parameters clash. Fancy Goldfish prefers a pH of 7-8, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water temperature envelopes clash. Zebra Danio requires 65-77°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Harlequin Rasbora

Trigonostigma heteromorpha

Conflict Report →
Water temperature envelopes clash. Harlequin Rasbora requires 73-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Platy

Xiphophorus maculatus

Conflict Report →
Water acidity (pH) parameters clash. Platy prefers a pH of 7-8.3, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Molly

Poecilia sphenops

Conflict Report →
Water acidity (pH) parameters clash. Molly prefers a pH of 7.5-8.5, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Swordtail

Xiphophorus hellerii

Conflict Report →
Water acidity (pH) parameters clash. Swordtail prefers a pH of 7-8, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water temperature envelopes clash. Corydoras Catfish requires 72-78°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Pea Puffer

Carinotetraodon travancoricus

Conflict Report →
Aggression incompatibility. Pea Puffer is an aggressive/territorial species. Peaceful or community fish like Discus cannot be housed with highly territorial fish safely.
Water temperature envelopes clash. Otocinclus Catfish requires 72-79°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Ghost Shrimp

Palaemonetes paludosus

Conflict Report →
Water acidity (pH) parameters clash. Ghost Shrimp prefers a pH of 7-8, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Amano Shrimp

Caridina multidentata

Conflict Report →
Water temperature envelopes clash. Amano Shrimp requires 70-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water acidity (pH) parameters clash. Mystery Snail prefers a pH of 7-8, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water acidity (pH) parameters clash. Nerite Snail prefers a pH of 7-8.2, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water temperature envelopes clash. Tiger Barb requires 74-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Cherry Barb requires 73-81°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Celestial Pearl Danio requires 71-78°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. White Cloud Mountain Minnow requires 60-72°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Rainbow Shark

Epalzeorhynchos frenatum

Conflict Report →
Aggression incompatibility. Rainbow Shark is an aggressive/territorial species. Peaceful or community fish like Discus cannot be housed with highly territorial fish safely.
Water acidity (pH) parameters clash. Red Tailed Black Shark prefers a pH of 6.8-7.5, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water temperature envelopes clash. Bloodfin Tetra requires 70-80°F, while Discus requires 82-88°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water acidity (pH) parameters clash. Electric Yellow Cichlid prefers a pH of 7.8-8.6, while Discus requires a pH of 5-6.5. There is no overlapping safe pH range.
Water temperature envelopes clash. Discus requires 82-88°F, while Oscar Cichlid requires 74-80°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Discus requires 82-88°F, while Siamese Algae Eater requires 75-80°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water acidity (pH) parameters clash. Discus prefers a pH of 5-6.5, while Blue Platy Fish requires a pH of 7-8.3. There is no overlapping safe pH range.
Cardinal Tetra

Paracheirodon axelrodi

Conflict Report →
Water temperature envelopes clash. Discus requires 82-88°F, while Cardinal Tetra requires 73-81°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Discus requires 82-88°F, while Serpae Tetra requires 72-79°F. Coldwater/coolwater and tropical species cannot share the same environment.
Water temperature envelopes clash. Discus requires 82-88°F, while African Dwarf Frog requires 72-78°F. Coldwater/coolwater and tropical species cannot share the same environment.
Knight Goby Fish

Stigmatogobius sadanundio

Conflict Report →
Water acidity (pH) parameters clash. Discus prefers a pH of 5-6.5, while Knight Goby Fish requires a pH of 7-8.5. There is no overlapping safe pH range.
Water acidity (pH) parameters clash. Discus prefers a pH of 5-6.5, while Assassin Snail requires a pH of 7-8. There is no overlapping safe pH range.

Verified Compatibility Profiles for Discus

Systematically explore algorithmic compatibility reports comparing the Discus against other common freshwater species:

Neon TetraParacheirodon innesi
incompatibleCross-Check →
GuppyPoecilia reticulata
incompatibleCross-Check →
Male Betta FishBetta splendens
incompatibleCross-Check →
AngelfishPterophyllum scalare
warningCross-Check →
Cherry ShrimpNeocaridina davidi
incompatibleCross-Check →
Bristlenose PlecoAncistrus cirrhosus
incompatibleCross-Check →
Fancy GoldfishCarassius auratus
incompatibleCross-Check →
Zebra DanioDanio rerio
incompatibleCross-Check →
Harlequin RasboraTrigonostigma heteromorpha
incompatibleCross-Check →
PlatyXiphophorus maculatus
incompatibleCross-Check →
MollyPoecilia sphenops
incompatibleCross-Check →
SwordtailXiphophorus hellerii
incompatibleCross-Check →
Corydoras CatfishCorydoras aeneus
incompatibleCross-Check →
Kuhli LoachPangio semiperfecta
compatibleCross-Check →
Pea PufferCarinotetraodon travancoricus
incompatibleCross-Check →
Otocinclus CatfishOtocinclus vestitus
incompatibleCross-Check →
Ghost ShrimpPalaemonetes paludosus
incompatibleCross-Check →
Amano ShrimpCaridina multidentata
incompatibleCross-Check →
Mystery SnailPomacea bridgesii
incompatibleCross-Check →
Nerite SnailVittina natalensis
incompatibleCross-Check →
Tiger BarbPuntigrus tetrazona
incompatibleCross-Check →
Cherry BarbPuntius titteya
incompatibleCross-Check →
Dwarf GouramiTrichogaster lalius
warningCross-Check →
Honey GouramiTrichogaster chuna
compatibleCross-Check →
Pearl GouramiTrichopodus leerii
compatibleCross-Check →
Celestial Pearl DanioDanio margaritatus
incompatibleCross-Check →
Chili RasboraBoraras brigittae
compatibleCross-Check →
White Cloud Mountain MinnowTanichthys albonubes
incompatibleCross-Check →
Clown LoachChromobotia macracanthus
compatibleCross-Check →
Rainbow SharkEpalzeorhynchos frenatum
incompatibleCross-Check →
Red Tailed Black SharkEpalzeorhynchos bicolor
incompatibleCross-Check →
Bloodfin TetraAphyocharax anisitsi
incompatibleCross-Check →
German Blue RamMikrogeophagus ramirezi
warningCross-Check →
Electric Yellow CichlidLabidochromis caeruleus
incompatibleCross-Check →
Oscar CichlidAstronotus ocellatus
incompatibleCross-Check →
Siamese Algae EaterCrossocheilus oblongus
incompatibleCross-Check →
Blue Platy FishXiphophorus maculatus
incompatibleCross-Check →
Cardinal TetraParacheirodon axelrodi
incompatibleCross-Check →
Rummynose TetraHemigrammus rhodostomus
compatibleCross-Check →
Ember TetraHyphessobrycon amandae
compatibleCross-Check →
Black Skirt TetraGymnocorymbus ternetzi
compatibleCross-Check →
Serpae TetraHyphessobrycon eques
incompatibleCross-Check →
Croaking GouramiTrichopsis vittata
compatibleCross-Check →
Featherfin SynodontisSynodontis eupterus
compatibleCross-Check →
African Dwarf FrogHymenochirus boettgeri
incompatibleCross-Check →
Knight Goby FishStigmatogobius sadanundio
incompatibleCross-Check →
Assassin SnailClea helena
incompatibleCross-Check →
Bala SharkBalantiocheilos melanopterus
compatibleCross-Check →
Apistogramma HongsloiApistogramma hongsloi
warningCross-Check →