Can Betta (Siamese Fighting Fish) live with Siamese Algae Eater?
Caution — with care
Why
- Betta (Siamese Fighting Fish) is semi-aggressive and may bully the peaceful Siamese Algae Eater — give lots of space and cover.
- Siamese Algae Eater is large enough to threaten a small Betta (Siamese Fighting Fish) — usually fine once both are adult, but watch new additions.
Sweet spot: both do well at 76–79°F and pH 6.5–7 — aim there.
Side-by-side
| Betta (Siamese Fighting Fish) | Siamese Algae Eater | |
|---|---|---|
| Temperature | 76–82°F | 75–79°F |
| pH | 6–7.5 | 6.5–7 |
| Hardness (GH) | 2–12 dGH | 5–12 dGH |
| Adult size | 2.5" | 6" |
| Temperament | Semi-aggressive | Peaceful |
| Min tank | 5 gal | 30 gal |
Together, plan on at least 30 gallons.
How to make it work
- Keep a large, established shrimp colony in a heavily planted tank with moss and cover so enough survive to breed.
- Use a larger, well-decorated tank with sightline breaks, keep everyone well-fed, and add the calmer fish first.
Sort it with: GH remineraliser → Aquarium Co-Op
Where to buy
- Betta (Siamese Fighting Fish): buy at Flip Aquatics · Flip Aquatics live-arrival guarantee
- Siamese Algae Eater: 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 Betta (Siamese Fighting Fish) · …with Siamese Algae Eater