Can Banded Archerfish (Brackish) and Flowerhorn Cichlid Live Together?

🔴Not Recommended

Banded Archerfish (Brackish) and Flowerhorn Cichlid are not recommended as tank mates due to incompatible water types. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Banded Archerfish (Brackish)

Toxotes jaculatrix

Flowerhorn Cichlid

Hybrid cichlid (Amphilophus cross)

🐠Family Group
Banded Archerfish (Brackish)
Oddballs
Flowerhorn Cichlid
Cichlids - Central American
Temperament
Banded Archerfish (Brackish)
Semi-Aggressive (6/10)
Flowerhorn Cichlid
Highly Aggressive (10/10)
Temperature
✓ Compatible
Banded Archerfish (Brackish)
24–30°C
Flowerhorn Cichlid
26–30°C
pH Range
✓ Compatible
Banded Archerfish (Brackish)
7–8.5
Flowerhorn Cichlid
7.4–8
Hardness (dGH)
✓ Compatible
Banded Archerfish (Brackish)
15–30
Flowerhorn Cichlid
9–20
Water Type
✗ No overlap
Banded Archerfish (Brackish)
Brackish Required
Flowerhorn Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Banded Archerfish (Brackish)
Moderate
Flowerhorn Cichlid
Moderate
Min Tank Volume
Combined: 360 L
Banded Archerfish (Brackish)
300 L
Flowerhorn Cichlid
280 L
Swimming Level
✓ Different zones
Banded Archerfish (Brackish)
Top
Flowerhorn Cichlid
MiddleBottom
🏷️Behavior Tags
Banded Archerfish (Brackish)
Piscivore (Eats small/nano fish)Jumper (Lid Required)Hyperactive / Fast SwimmerAggressive to same species/look-alikes
Flowerhorn Cichlid
Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Digger (Disturbs Substrate)Plant DestroyerPiscivore (Eats small/nano fish)

Behaviour & Temperament

Banded Archerfish (Brackish) is a moderately assertive species (6/10), while Flowerhorn Cichlid is highly aggressive (10/10). This notable difference means Flowerhorn Cichlid may occasionally assert dominance over Banded Archerfish (Brackish).

In terms of spatial distribution, Banded Archerfish (Brackish) prefers the Top (Surface) zone, whereas Flowerhorn Cichlid occupies the Middle (Open Water) and Bottom (Substrate) zones. 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.

Water Parameters

The safe temperature window for both species falls between 26°C and 30°C. Aim for the midpoint of this range (around 28.0°C) for optimal comfort.

Both fish can tolerate a pH between 7.4 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 15–20 dGH. Regular testing will ensure conditions stay within this range.

Crucially, these species require different water types — one needs freshwater while the other requires brackish conditions. This is a hard barrier to keeping them together.

Tank Setup

To house Banded Archerfish (Brackish) and Flowerhorn Cichlid together, plan for an aquarium of at least 360 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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), 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.

Frequently Asked Questions

Can Banded Archerfish (Brackish) and Flowerhorn Cichlid live together?

No. This combination is not recommended. Key incompatibilities — such as different water type needs — make cohabitation unsafe.

What size tank do Banded Archerfish (Brackish) and Flowerhorn Cichlid need?

A minimum of 360 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 Banded Archerfish (Brackish) and Flowerhorn Cichlid together?

Keep the aquarium between 26°C and 30°C. A target of around 28.0°C sits comfortably within both species' preferred ranges.

Are Banded Archerfish (Brackish) or Flowerhorn Cichlid aggressive?

Banded Archerfish (Brackish) is moderately assertive (6/10) and Flowerhorn Cichlid is highly aggressive (10/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Banded Archerfish (Brackish) and Flowerhorn Cichlid need?

Both species overlap in the 7.4–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Flowerhorn Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Flowerhorn Cichlid 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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