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):
- Sparkling Gourami — 1.5", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Pygmy Cory — 1", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Moonlight Gourami — 6", peaceful buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Instead of Red-Line Rasbora (to keep Oscar):
- Oscar — 16", aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Giant Gourami — 24", semi-aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Typhoon Pleco — 12", semi-aggressive buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Where to buy
- Oscar: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Red-Line Rasbora: buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
Live-animal shipping: add a heat pack below 50°F, expect weather holds above 90°F, and schedule delivery for a moderate week when someone can receive it promptly.
Build a full tank around this stocking →Everything compatible with Oscar · …with Red-Line Rasbora