Can Banana Loach and Scarlet Badis Live Together?

Reviewed by Guidarium Editorial DeskUpdated April 29, 2026
Ideal Tank Mates

Yes, Banana Loach and Scarlet Badis are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 200 litres is recommended.


At a Glance

Banana Loach

Acantopsis choirorhynchos

Scarlet Badis

Dario dario

🐠Family Group
Banana Loach
Loaches
Scarlet Badis
Other
Temperament
Banana Loach
Peaceful (2/10)
Scarlet Badis
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Banana Loach
22–28°C
Scarlet Badis
18–26°C
pH Range
✓ Compatible
Banana Loach
6–7.8
Scarlet Badis
6.5–8.5
Hardness (dGH)
✓ Compatible
Banana Loach
2–15
Scarlet Badis
4–20
Water Type
✓ Compatible
Banana Loach
Freshwater Only
Scarlet Badis
Freshwater Only
Flow Preference
✓ Compatible
Banana Loach
Moderate
Scarlet Badis
Low
Min Tank Volume
Combined: 200 L
Banana Loach
200 L
Scarlet Badis
20 L
Swimming Level
Shared: 1 zone
Banana Loach
Bottom
Scarlet Badis
MiddleBottom
🏷️Behavior Tags
Banana Loach
Digger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)Nocturnal
Scarlet Badis
Nano / Bite-sized (Predation Risk)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)Aggressive to same species/look-alikesTerritorial (Defends specific area)
Stocking calculator

Can your tank handle Banana Loach and Scarlet Badis?

Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.

Banana Loach
Scarlet Badis
Test both in my tank

Behaviour & Temperament

Banana Loach is a peaceful species (2/10), while Scarlet Badis is generally mild-mannered (3/10). This modest difference means Scarlet Badis may occasionally assert dominance over Banana Loach.

Banana Loach and Scarlet Badis both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Worth noting: Banana Loach is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

Water Parameters

The safe temperature window for both species falls between 22°C and 26°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 7.8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 4–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Banana Loach and Scarlet Badis together, plan for an aquarium of at least 200 litres with a minimum length of 120 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Plants - Densely covered, Plants - lighly covered. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Works in Practice

Banana Loach and Scarlet Badis work best when the tank gives each fish enough room to use its preferred level of the aquarium and enough cover to avoid constant visual contact. The score matters, but the real-world success usually comes from matching their pace, keeping water stable, and resisting the urge to crowd the tank just because the pair looks safe on paper.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Banana Loach and Scarlet Badis.

Show 5 more tank sizes

Frequently Asked Questions

Can Banana Loach and Scarlet Badis live together?

Yes. Banana Loach and Scarlet Badis are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Banana Loach and Scarlet Badis need?

A minimum of 200 litres (tank length at least 120 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Banana Loach and Scarlet Badis together?

Keep the aquarium between 22°C and 26°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Banana Loach or Scarlet Badis aggressive?

Banana Loach is peaceful (2/10) and Scarlet Badis is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Banana Loach and Scarlet Badis need?

Both species overlap in the 6.5–7.8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Scarlet Badis's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Scarlet Badis space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.

Does Banana Loach being nocturnal affect compatibility?

Banana Loach is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Banana Loach during evening hours.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
April 29, 2026
Last updated
April 29, 2026
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