Can Discus Live With Yellow Tang?
Incompatible pH. Discus needs 5.5–7.0, Yellow Tang needs 8.1–8.4.
Parameter Comparison
| Parameter | Discus | Yellow Tang | Overlap |
|---|---|---|---|
| Temperature | 82–88°F | 75–82°F | 82–82°F ✓ |
| pH Range | 5.5–7 | 8.1–8.4 | No overlap ✗ |
| Temperament | peaceful | semi-aggressive | Monitor ⚠ |
| Max Size | 8" | 8" | Similar ✓ |
| Min Tank Size | 55 gal | 75 gal | 75 gal minimum together |
| Diet | Carnivore/Omnivore | Herbivore | — |
| Care Level | advanced | intermediate | — |
Species Profiles
Discus
Symphysodon spp.
Discus are widely considered the king of freshwater aquarium fish. Their disk-shaped body, vivid colors, and graceful swimming make them the ultimate showpiece. However, they are among the most demanding freshwater fish to keep, requiring warm, soft, exceptionally clean water, frequent feedings, and a stress-free environment. Discus are not recommended for beginners.
Full care guide →Yellow Tang
Zebrasoma flavescens
The yellow tang is the most iconic reef tank fish — a solid lemon-yellow disc that constantly grazes algae across the rock work. They are active, hardy, and excellent algae controllers for reef tanks. However, they need large tanks (75+ gallons minimum), can be aggressive toward similar-shaped fish, and have become significantly more expensive following collection bans in Hawaii.
Full care guide →