Can Bandit Cory and Grant's Peacock Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Bandit Cory and Grant's Peacock Cichlid 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

Bandit Cory

Corydoras metae

Grant's Peacock Cichlid

Aulonocara stuartgranti

🐠Family Group
Bandit Cory
Catfish
Grant's Peacock Cichlid
Cichlids - African
Temperament
Bandit Cory
Peaceful (1/10)
Grant's Peacock Cichlid
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Bandit Cory
22–26°C
Grant's Peacock Cichlid
24–28°C
pH Range
✗ No overlap
Bandit Cory
6–7.5
Grant's Peacock Cichlid
7.8–8.6
Hardness (dGH)
✓ Compatible
Bandit Cory
2–15
Grant's Peacock Cichlid
10–25
Water Type
✓ Compatible
Bandit Cory
Freshwater Only
Grant's Peacock Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Bandit Cory
Moderate
Grant's Peacock Cichlid
Moderate
Min Tank Volume
Combined: 208 L
Bandit Cory
60 L
Grant's Peacock Cichlid
208 L
Swimming Level
Shared: 1 zone
Bandit Cory
Bottom
Grant's Peacock Cichlid
MiddleBottom
🏷️Behavior Tags
Bandit Cory
Hyperactive / Fast SwimmerDigger (Disturbs Substrate)
Grant's Peacock Cichlid
Territorial (Defends specific area)Digger (Disturbs Substrate)Aggressive to same species/look-alikesHyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Bandit Cory and Grant's Peacock Cichlid?

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.

Bandit Cory
Grant's Peacock Cichlid
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Behaviour & Temperament

Bandit Cory is a peaceful species (1/10), while Grant's Peacock Cichlid is moderately assertive (6/10). This notable difference means Grant's Peacock Cichlid may occasionally assert dominance over Bandit Cory.

Bandit Cory and Grant's Peacock Cichlid both frequent the 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 24°C and 26°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

The pH requirements of Bandit Cory (6–7.5) and Grant's Peacock Cichlid (7.8–8.6) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Bandit Cory and Grant's Peacock Cichlid together, plan for an aquarium of at least 208 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). 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.

Why This Pairing Usually Fails in Practice

Bandit Cory and Grant's Peacock Cichlid are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Bandit Cory and Grant's Peacock Cichlid.

Show 5 more tank sizes

Frequently Asked Questions

Can Bandit Cory and Grant's Peacock Cichlid live together?

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

What size tank do Bandit Cory and Grant's Peacock Cichlid need?

A minimum of 208 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 Bandit Cory and Grant's Peacock Cichlid 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 Bandit Cory or Grant's Peacock Cichlid aggressive?

Bandit Cory is peaceful (1/10) and Grant's Peacock Cichlid 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 Bandit Cory and Grant's Peacock Cichlid need?

Their pH requirements do not overlap. Bandit Cory prefers 6–7.5, while Grant's Peacock Cichlid needs 7.8–8.6. This makes them incompatible in the same water chemistry.

How do I manage Grant's Peacock Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Grant's Peacock 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.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 6, 2026
Last updated
May 6, 2026
Issues or corrections?
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