Can Bentos Tetra and Peacock Cichlid (Aulonocara) Live Together?

Not Recommended

Bentos Tetra and Peacock Cichlid (Aulonocara) 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

Bentos Tetra

Hyphessobrycon bentosi

Peacock Cichlid (Aulonocara)

Aulonocara sp.

🐠Family Group
Bentos Tetra
Characins
Peacock Cichlid (Aulonocara)
Cichlids - African
Temperament
Bentos Tetra
Peaceful (2/10)
Peacock Cichlid (Aulonocara)
Semi-Aggressive (6/10)
Temperature
βœ“ Compatible
Bentos Tetra
23–28Β°C
Peacock Cichlid (Aulonocara)
24–28Β°C
pH Range
βœ— No overlap
Bentos Tetra
5.5–7.5
Peacock Cichlid (Aulonocara)
7.8–8.6
Hardness (dGH)
βœ“ Compatible
Bentos Tetra
1–12
Peacock Cichlid (Aulonocara)
10–25
Water Type
βœ“ Compatible
Bentos Tetra
Freshwater Only
Peacock Cichlid (Aulonocara)
Freshwater Only
Flow Preference
βœ“ Compatible
Bentos Tetra
Low
Peacock Cichlid (Aulonocara)
Moderate
Min Tank Volume
Combined: 200 L
Bentos Tetra
60 L
Peacock Cichlid (Aulonocara)
200 L
Swimming Level
Shared: 2 zones
Bentos Tetra
MiddleBottom
Peacock Cichlid (Aulonocara)
BottomMiddle
🏷️Behavior Tags
Bentos Tetra
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)
Peacock Cichlid (Aulonocara)
Territorial (Defends specific area)Aggressive to same species/look-alikesDigger (Disturbs Substrate)
Stocking calculator

Can your tank handle Bentos Tetra and Peacock Cichlid (Aulonocara)?

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.

Bentos Tetra
Peacock Cichlid (Aulonocara)
Test both in my tank

Behaviour & Temperament

Bentos Tetra is a peaceful species (2/10), while Peacock Cichlid (Aulonocara) is moderately assertive (6/10). This notable difference means Peacock Cichlid (Aulonocara) may occasionally assert dominance over Bentos Tetra.

Bentos Tetra and Peacock Cichlid (Aulonocara) 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.

Water Parameters

The safe temperature window for both species falls between 24Β°C and 28Β°C. Aim for the midpoint of this range (around 26.0Β°C) for optimal comfort.

The pH requirements of Bentos Tetra (5.5–7.5) and Peacock Cichlid (Aulonocara) (7.8–8.6) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Bentos Tetra and Peacock Cichlid (Aulonocara) 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: Plants - Densely covered, Leaf Litter/Blackwater, Sand (Sifters), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

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

Suitable Tank Sizes

Standard aquarium sizes large enough for both Bentos Tetra and Peacock Cichlid (Aulonocara).

Show 5 more tank sizes

Frequently Asked Questions

Can Bentos Tetra and Peacock Cichlid (Aulonocara) live together?

No. This combination is not recommended. Key incompatibilities β€” such as critical behavioural conflicts β€” make cohabitation unsafe.

What size tank do Bentos Tetra and Peacock Cichlid (Aulonocara) 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 Bentos Tetra and Peacock Cichlid (Aulonocara) together?

Keep the aquarium between 24Β°C and 28Β°C. A target of around 26.0Β°C sits comfortably within both species' preferred ranges.

Are Bentos Tetra or Peacock Cichlid (Aulonocara) aggressive?

Bentos Tetra is peaceful (2/10) and Peacock Cichlid (Aulonocara) is moderately assertive (6/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Bentos Tetra and Peacock Cichlid (Aulonocara) need?

Their pH requirements do not overlap. Bentos Tetra prefers 5.5–7.5, while Peacock Cichlid (Aulonocara) needs 7.8–8.6. This makes them incompatible in the same water chemistry.

How do I manage Peacock Cichlid (Aulonocara)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Peacock Cichlid (Aulonocara) space to claim a territory without encroaching on the other fish's area. Adding dΓ©cor that divides the tank into distinct zones works especially well.


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