Can Banded Chromide and Betta Macrostoma Live Together?
Banded Chromide and Betta Macrostoma are not recommended as tank mates due to conflicting pH requirements and incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.
At a Glance
Can your tank handle Banded Chromide and Betta Macrostoma?
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.
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Behaviour & Temperament
Banded Chromide is a moderately assertive species (5/10), while Betta Macrostoma is moderately assertive (6/10). This modest difference means Betta Macrostoma may occasionally assert dominance over Banded Chromide.
Banded Chromide and Betta Macrostoma both frequent the Middle (Open Water) and 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.
Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.
Worth noting: Betta Macrostoma is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 24°C and 25°C. Aim for the midpoint of this range (around 24.5°C) for optimal comfort.
The pH requirements of Banded Chromide (7.5–8.5) and Betta Macrostoma (4–6) do not overlap, making it impossible to satisfy both species simultaneously.
Hardness requirements are incompatible: Banded Chromide needs 10–25 dGH while Betta Macrostoma requires 0–5 dGH.
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Tank Setup
To house Banded Chromide and Betta Macrostoma together, plan for an aquarium of at least 450 litres with a minimum length of 150 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), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding), Plants - Floating. 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.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Banded Chromide and Betta Macrostoma.
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Frequently Asked Questions
Can Banded Chromide and Betta Macrostoma live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Banded Chromide and Betta Macrostoma need?
A minimum of 450 litres (tank length at least 150 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 Banded Chromide and Betta Macrostoma together?
Keep the aquarium between 24°C and 25°C. A target of around 24.5°C sits comfortably within both species' preferred ranges.
Are Banded Chromide or Betta Macrostoma aggressive?
Banded Chromide is moderately assertive (5/10) and Betta Macrostoma is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Banded Chromide and Betta Macrostoma need?
Their pH requirements do not overlap. Banded Chromide prefers 7.5–8.5, while Betta Macrostoma needs 4–6. This makes them incompatible in the same water chemistry.
How do I manage Banded Chromide's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Banded Chromide 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.
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