Can Discus live with Oscar?
Not recommended
Why
- Oscar is aggressive and will attack the peaceful Discus.
- Oscar may eat Discus; add only full-grown adults, because juveniles and fry will be picked off.
- No overlapping temperature: Discus wants 82–88°F but Oscar wants 74–81°F.
Side-by-side
| Discus | Oscar | |
|---|---|---|
| Temperature | 82–88°F | 74–81°F |
| pH | 5.5–7 | 6–8 |
| Hardness (GH) | 1–8 dGH | 5–20 dGH |
| Adult size | 8" | 16" |
| Temperament | Peaceful | Aggressive |
| Min tank | 55 gal | 75 gal |
Together, plan on at least 75 gallons.
Compatible alternatives
Instead of Discus (to keep Oscar):
- Oscar — 16", aggressive
- Kissing Gourami — 12", semi-aggressive
- Typhoon Pleco — 12", semi-aggressive
Instead of Oscar (to keep Discus):
- Kissing Gourami — 12", semi-aggressive
- Giant Gourami — 24", semi-aggressive
- Moonlight Gourami — 6", peaceful
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Design a tank with Discus, Oscar →Everything compatible with Discus · …with Oscar