Can Malawi Hawk and Penguin Tetra Live Together?
Malawi Hawk and Penguin Tetra 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 Malawi Hawk and Penguin Tetra?
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.
Shared setup supplies
We may earn from qualifying purchases
Behaviour & Temperament
Malawi Hawk is a semi-aggressive species (7/10), while Penguin Tetra is peaceful (2/10). This notable difference means Malawi Hawk may occasionally assert dominance over Penguin Tetra.
Malawi Hawk and Penguin Tetra both frequent the Middle (Open Water) and Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.
Worth noting: Penguin Tetra 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 Malawi Hawk (7.8–8.6) and Penguin Tetra (5.5–7.5) 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.
Water care products
We may earn from qualifying purchases
Tank Setup
To house Malawi Hawk and Penguin Tetra together, plan for an aquarium of at least 475 litres with a minimum length of 180 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), Plants - Densely covered, Plants - Floating. 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.
Suitable Tank Sizes
Standard aquarium sizes large enough for both Malawi Hawk and Penguin Tetra.
Feeding products to consider
We may earn from qualifying purchases
.webp?2026-04-25T14%3A35%3A38.022Z)
Frequently Asked Questions
Can Malawi Hawk and Penguin Tetra live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Malawi Hawk and Penguin Tetra need?
A minimum of 475 litres (tank length at least 180 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 Malawi Hawk and Penguin Tetra 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 Malawi Hawk or Penguin Tetra aggressive?
Malawi Hawk is semi-aggressive (7/10) and Penguin Tetra is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Malawi Hawk and Penguin Tetra need?
Their pH requirements do not overlap. Malawi Hawk prefers 7.8–8.6, while Penguin Tetra needs 5.5–7.5. This makes them incompatible in the same water chemistry.
Will Penguin Tetra nip Malawi Hawk's fins?
Penguin Tetra is a known fin nipper. If Malawi Hawk has long or flowing fins, there is a real risk of fin damage. Keeping Penguin Tetra in a larger group can help redirect nipping behaviour toward conspecifics.
How do I manage Malawi Hawk's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Malawi Hawk 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.
Related Comparisons
Malawi Hawk & Azureus Cichlid
·
Malawi Hawk & Malawi Eyebiter
·
Malawi Hawk & Trout Cichlid (Champsochromis)
·
Malawi Hawk & Afra Cichlid
·
Malawi Hawk & African Jewel Cichlid
·
Malawi Hawk & Altolamprologus Calvus
·
Penguin Tetra & Black Neon Tetra
·
Penguin Tetra & Bloodfin Tetra
·
Penguin Tetra & Congo Tetra
·
Penguin Tetra & Glass Bloodfin Tetra
·
Penguin Tetra & Green Fire Tetra
·
Penguin Tetra & Head and Tail Light Tetra
·