Betta
Betta / Siamese Fighting Fish
Can they live together?
Betta and Guppy compatibility
Compare their preferred water conditions and basic behavior.
Guppy
Guppy
Use caution
The shared pH range (7.2–7.5) is narrow, so watch for water changes.
- A Betta may mistake a Guppy’s colorful, flowing fins for a rival.
Checked for 1 Betta and 3 Guppy in a 38 L aquarium.
Shared environment
Recommended temperature
24 ~ 27°C
Recommended pH
7.2 ~ 7.5
Suggested group sizes
Betta: at least 1
Guppy: at least 3
Together they need at least 38 L and about 45 cm of length.
Check that your aquarium is large enough for both species.
Side by side
| Item | Betta | Guppy |
|---|---|---|
| Average adult size | about 7 cm (medium) | about 6 cm (small) |
| Recommended temperature | 24~27°C | 23~27°C |
| Recommended pH | 6.5~7.5 | 7.2~8.2 |
| Water hardness | Medium hardness | Medium hardness |
| Minimum aquarium | 38 L, about 45 cm long | 38 L, about 45 cm long |
| Group size | single is fine | at least 3 |
| Temperament | Territorial | Gentle |
| Social behavior | Best kept alone | Social |
| Swimming zone | upper & middle | upper & middle |
| Activity level | Low | High |
| Waste level | Low | Moderate |
| With shrimp | adults use caution, babies not recommended | adults use caution, babies not recommended |
| Beginner level | 3/5 | 5/5 |
베타와 구피 합사에 필요한 용품
- 스펀지 여과기 쿠팡에서 보기최소 38L 어항에 맞고, 치어·새우가 빨려 들어가지 않아요.
- 수족관 히터 쿠팡에서 보기공통 수온 24~27°C를 유지할 때 필요해요.
- 어항 수질 테스트기 쿠팡에서 보기공통 pH 7.2~7.5를 확인할 때 써요.
- 열대어 사료 쿠팡에서 보기베타에게 주는 일반 열대어 사료예요.
- 어항 뚜껑 쿠팡에서 보기한쪽이 뛰어오를 수 있어 뚜껑을 권장해요.
이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.
Frequently asked questions
Can Betta and Guppy live together?
Planner result: Use caution. The shared pH range (7.2–7.5) is narrow, so watch for water changes. A Betta may mistake a Guppy’s colorful, flowing fins for a rival.
What water conditions suit both Betta and Guppy?
Keep the water at 24~27°C and pH 7.2~7.5, where both planner ranges overlap. Betta prefers medium hardness and Guppy prefers medium hardness.
How big should an aquarium for Betta and Guppy be?
At least 38 L and about 45 cm long, the larger of the two minimums (Betta: 38 L, Guppy: 38 L). Group sizes add to the bioload, so bigger is safer.
How many Betta and Guppy should I keep?
Betta: can be kept singly (best kept alone). Guppy: at least 3 (social).
Do Betta and Guppy have similar temperaments?
Betta is territorial and swims in the upper & middle; Guppy is gentle and swims in the upper & middle. Activity: low vs high.
Sources & review
Each species' values are cross-checked against the references below and normalized into the planner's own ranges; the verdict comes from the planner's published rules. No text or images are copied.
Betta
- Seriously Fish care reference
- Aquarium Co-Op practical reference
- GBIF taxonomy search
- Seriously Fish care reference (search)
- Aquarium Co-Op practical reference (search)
Guppy
This is a guide. Individual behavior and aquarium conditions can change the outcome.