Can Afra Cichlid and Emerald Eye Rasbora Live Together?
Afra Cichlid and Emerald Eye Rasbora are not recommended as tank mates due to conflicting pH requirements. 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 Afra Cichlid and Emerald Eye Rasbora?
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
Afra Cichlid is a semi-aggressive species (8/10), while Emerald Eye Rasbora is peaceful (1/10). This notable difference means Afra Cichlid may occasionally assert dominance over Emerald Eye Rasbora.
Large aggression gap (7 points) between Afra Cichlid and Emerald Eye Rasbora increases stress risk for the more peaceful fish.
Afra Cichlid and Emerald Eye Rasbora both frequent the Middle (Open Water) 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: Aggressive fish may bully and stress shy, slow-moving species. Hyperactive swimmers can stress shy, slow-moving species through constant motion.
Water Parameters
The safe temperature window for both species falls between 24°C and 26°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.
The pH requirements of Afra Cichlid (7.6–8.6) and Emerald Eye Rasbora (5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.
For general hardness, the shared comfort zone is 10–10 dGH. Regular testing will ensure conditions stay within this range.
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Tank Setup
To house Afra Cichlid and Emerald Eye Rasbora together, plan for an aquarium of at least 252 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), Established Algae (Otocinclus), Plants - Densely covered, Leaf Litter/Blackwater. Meeting these requirements will help both species thrive.
Note a potential conflict in setup requirements: Afra Cichlid is a plant destroyer, which conflicts with Emerald Eye Rasbora's requirement for live plants. Compromise where possible or prioritise the more critical need.
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 Afra Cichlid and Emerald Eye Rasbora.
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
180 Gallon Standard
350 Liter (120cm Deep)
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Frequently Asked Questions
Can Afra Cichlid and Emerald Eye Rasbora live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Afra Cichlid and Emerald Eye Rasbora need?
A minimum of 252 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 Afra Cichlid and Emerald Eye Rasbora together?
Keep the aquarium between 24°C and 26°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.
Are Afra Cichlid or Emerald Eye Rasbora aggressive?
Afra Cichlid is semi-aggressive (8/10) and Emerald Eye Rasbora is peaceful (1/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Afra Cichlid and Emerald Eye Rasbora need?
Their pH requirements do not overlap. Afra Cichlid prefers 7.6–8.6, while Emerald Eye Rasbora needs 5–7.5. This makes them incompatible in the same water chemistry.
How do I manage Afra Cichlid's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Afra 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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