Can Maison Reef Peacock and Monster Wolf Fish (Aimara) Live Together?
Maison Reef Peacock and Monster Wolf Fish (Aimara) 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 Maison Reef Peacock and Monster Wolf Fish (Aimara)?
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.
Behaviour & Temperament
Maison Reef Peacock is a moderately assertive species (6/10), while Monster Wolf Fish (Aimara) is highly aggressive (10/10). This notable difference means Monster Wolf Fish (Aimara) may occasionally assert dominance over Maison Reef Peacock.
Maison Reef Peacock and Monster Wolf Fish (Aimara) 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.
Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.
Worth noting: Monster Wolf Fish (Aimara) is a known jumper, so a tight-fitting lid is essential.
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.
The pH requirements of Maison Reef Peacock (7.8–8.6) and Monster Wolf Fish (Aimara) (6–7.5) 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 Maison Reef Peacock and Monster Wolf Fish (Aimara) together, plan for an aquarium of at least 1500 litres with a minimum length of 240 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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). 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
Maison Reef Peacock and Monster Wolf Fish (Aimara) 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.
Frequently Asked Questions
Can Maison Reef Peacock and Monster Wolf Fish (Aimara) live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Maison Reef Peacock and Monster Wolf Fish (Aimara) need?
A minimum of 1500 litres (tank length at least 240 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 Maison Reef Peacock and Monster Wolf Fish (Aimara) 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 Maison Reef Peacock or Monster Wolf Fish (Aimara) aggressive?
Maison Reef Peacock is moderately assertive (6/10) and Monster Wolf Fish (Aimara) 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 Maison Reef Peacock and Monster Wolf Fish (Aimara) need?
Their pH requirements do not overlap. Maison Reef Peacock prefers 7.8–8.6, while Monster Wolf Fish (Aimara) needs 6–7.5. This makes them incompatible in the same water chemistry.
How do I manage Maison Reef Peacock's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Maison Reef Peacock 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.
Shared setup supplies
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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?
- Contact the editorial team
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