Overview
The Discus (Symphysodon spp.) is a advanced freshwater species known for its multi-color (red, blue, brown, green variants) coloration. King of freshwater fish. Mid.
Origin & Appearance
Origin: Amazon Basin.
Colors: Multi-color (Red, Blue, Brown, Green variants).
Body Shape: Compressiform (laterally flat). Typical adult dimensions: 20.0 x 3.0 x 11.0.
Sexual Dimorphism: Minimal; very hard to sex.
Tank & Water Requirements
| Min Tank Size | 53 gallons |
| Temperature | 81–88°F |
| pH Range | 5.5–7 |
| Water Hardness (GH) | 1-5 |
| Bioload | medium |
| Oxygen Demand | high |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Extremely slow regal glider; minimal movement — hovers and drifts; deliberate turns with whole body; easily stressed by fast tankmates
Speed: 28/100Aggression: 4/10diurnalSchooling (5+)
Breeding
Difficult; substrate spawner; feeds fry with body slime
Common Diseases
💊 Discus plague💊 HITH💊 parasites💊 very sensitive
Expert Notes
King of freshwater fish; demanding
Compatible Tank Mates
✓ cardinal tetra✓ rummy nose tetra✓ corydoras catfish✓ bristlenose pleco✓ otocinclus✓ cherry shrimp✓ amano shrimp