Can Oscar live with Red-Line Rasbora?
Not recommended
Why
- Oscar’s mouth is big enough to swallow Red-Line Rasbora (only 1.75" long) — it will be eaten.
- Oscar is aggressive and will attack the peaceful Red-Line Rasbora.
Side-by-side
| Oscar | Red-Line Rasbora | |
|---|---|---|
| Temperature | 74–81°F | 73–81°F |
| pH | 6–8 | 5–7 |
| Hardness (GH) | 5–20 dGH | 1–8 dGH |
| Adult size | 16" | 1.75" |
| Temperament | Aggressive | Peaceful |
| Min tank | 75 gal | 15 gal |
Together, plan on at least 75 gallons.
Compatible alternatives
Instead of Oscar (to keep Red-Line Rasbora):
- Kissing Gourami — 12", semi-aggressive
- Sparkling Gourami — 1.5", peaceful buy at The Shrimp Farm · The Shrimp Farm live-arrival guarantee
- Licorice Gourami — 1.4", peaceful
Instead of Red-Line Rasbora (to keep Oscar):
- Oscar — 16", aggressive
- Kissing Gourami — 12", semi-aggressive
- Typhoon Pleco — 12", semi-aggressive
Design the whole tank, not just the stocking
Skapelab plans a complete, buildable planted aquarium around your fish — a hand-illustrated layout, the exact plants and hardscape, a placement map, and a full equipment and shopping list. Free.
Design a tank with Oscar, Red-Line Rasbora →Everything compatible with Oscar · …with Red-Line Rasbora