Can Banded Archerfish (Brackish) and Finger Fish Live Together?
Keeping Banded Archerfish (Brackish) and Finger Fish together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 470 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.
At a Glance
Can your tank handle Banded Archerfish (Brackish) and Finger Fish?
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 Archerfish (Brackish) is a moderately assertive species (6/10), while Finger Fish is moderately assertive (5/10). This modest difference means Banded Archerfish (Brackish) may occasionally assert dominance over Finger Fish.
In terms of spatial distribution, Banded Archerfish (Brackish) prefers the Top (Surface) zone, whereas Finger Fish occupies the Middle (Open Water) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.
Worth noting: Banded Archerfish (Brackish) is a known jumper, so a tight-fitting lid is essential.
To improve the chances of a peaceful coexistence in this community tank: Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.
Water Parameters
The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.
Both fish can tolerate a pH between 7.5 and 8.5. Maintaining a stable value within this band is more important than hitting an exact number.
For general hardness, the shared comfort zone is 15–30 dGH. Regular testing will ensure conditions stay within this range.
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Tank Setup
To house Banded Archerfish (Brackish) and Finger Fish together, plan for an aquarium of at least 470 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.
Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.
Specific environmental needs for this combination include: Sand (Sifters), Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels). 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 Archerfish (Brackish) and Finger Fish.
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Frequently Asked Questions
Can Banded Archerfish (Brackish) and Finger Fish live together?
They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 470 litres), plenty of hiding spots, and watch for signs of stress or aggression.
What size tank do Banded Archerfish (Brackish) and Finger Fish need?
A minimum of 470 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 Archerfish (Brackish) and Finger Fish together?
Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.
Are Banded Archerfish (Brackish) or Finger Fish aggressive?
Banded Archerfish (Brackish) is moderately assertive (6/10) and Finger Fish is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Banded Archerfish (Brackish) and Finger Fish need?
Both species overlap in the 7.5–8.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.
Will Finger Fish nip Banded Archerfish (Brackish)'s fins?
Finger Fish is a known fin nipper. If Banded Archerfish (Brackish) has long or flowing fins, there is a real risk of fin damage. Keeping Finger Fish in a larger group can help redirect nipping behaviour toward conspecifics.
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