Can they live together?

Serpae Tetra and Betta compatibility

Compare their preferred water conditions and basic behavior.

Serpae Tetra

Serpae Tetra

Betta

Betta / Siamese Fighting Fish

Not recommended

Species-specific care guidance does not recommend this combination.

Checked for 8 Serpae Tetra and 1 Betta in a 75 L aquarium.

Shared environment

Recommended temperature
24 ~ 27°C

Recommended pH
6.5 ~ 7.5

Suggested group sizes

Serpae Tetra: at least 8

Betta: at least 1

Together they need at least 75 L and about 60 cm of length.

Check that your aquarium is large enough for both species.

Side by side

ItemSerpae TetraBetta
Average adult sizeabout 4.5 cm (small)about 7 cm (medium)
Recommended temperature23~27°C24~27°C
Recommended pH5.8~7.56.5~7.5
Water hardnessMedium hardnessMedium hardness
Minimum aquarium75 L, about 60 cm long38 L, about 45 cm long
Group sizeat least 8single is fine
TemperamentModerateTerritorial
Social behaviorShoaling fishBest kept alone
Swimming zonemiddleupper & middle
Activity levelModerateLow
Waste levelLowLow
With shrimpadults not recommended, babies not recommendedadults use caution, babies not recommended
Beginner level3/53/5

세르파에 테트라와 베타 합사에 필요한 용품

이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.

Frequently asked questions

Can Serpae Tetra and Betta live together?

Planner result: Not recommended. Species-specific care guidance does not recommend this combination.

What water conditions suit both Serpae Tetra and Betta?

Keep the water at 24~27°C and pH 6.5~7.5, where both planner ranges overlap. Serpae Tetra prefers medium hardness and Betta prefers medium hardness.

How big should an aquarium for Serpae Tetra and Betta be?

At least 75 L and about 60 cm long, the larger of the two minimums (Serpae Tetra: 75 L, Betta: 38 L). Group sizes add to the bioload, so bigger is safer.

How many Serpae Tetra and Betta should I keep?

Serpae Tetra: at least 8 (shoaling fish). Betta: can be kept singly (best kept alone).

Do Serpae Tetra and Betta have similar temperaments?

Serpae Tetra is moderate and swims in the middle; Betta is territorial and swims in the upper & middle. Activity: moderate vs low.

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.

Serpae Tetra

Review confidence B on an A–C scale (A is highest); last reviewed 2026-10-07.

Betta

Review confidence A on an A–C scale (A is highest); last reviewed 2026-10-07.

How compatibility is checked

Try it in my aquarium

This is a guide. Individual behavior and aquarium conditions can change the outcome.