Can Flower Stingray and Malawi Hawk Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Flower Stingray and Malawi Hawk 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

Flower Stingray

Potamotrygon schroederi

Malawi Hawk

Aristochromis christyi

🐠Family Group
Flower Stingray
Oddballs
Malawi Hawk
Cichlids - African
Temperament
Flower Stingray
Semi-Aggressive (6/10)
Malawi Hawk
Aggressive (7/10)
Temperature
✓ Compatible
Flower Stingray
24–29°C
Malawi Hawk
24–28°C
pH Range
✗ No overlap
Flower Stingray
6–7.5
Malawi Hawk
7.8–8.6
Hardness (dGH)
✓ Compatible
Flower Stingray
1–12
Malawi Hawk
10–25
Water Type
✓ Compatible
Flower Stingray
Freshwater Only
Malawi Hawk
Freshwater Only
Flow Preference
✓ Compatible
Flower Stingray
Moderate
Malawi Hawk
Moderate
Min Tank Volume
Combined: 1700 L
Flower Stingray
1700 L
Malawi Hawk
475 L
Swimming Level
✓ Different zones
Flower Stingray
Bottom
Malawi Hawk
MiddleTop
🏷️Behavior Tags
Flower Stingray
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorDigger (Disturbs Substrate)Plant Destroyer
Malawi Hawk
Piscivore (Eats small/nano fish)Generally AggressiveTerritorial (Defends specific area)Hyperactive / Fast Swimmer
Stocking calculator

Can your tank handle Flower Stingray and Malawi Hawk?

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.

Flower Stingray
Malawi Hawk
Test both in my tank

Behaviour & Temperament

Flower Stingray is a moderately assertive species (6/10), while Malawi Hawk is semi-aggressive (7/10). This modest difference means Malawi Hawk may occasionally assert dominance over Flower Stingray.

In terms of spatial distribution, Flower Stingray prefers the Bottom (Substrate) zone, whereas Malawi Hawk occupies the Middle (Open Water) and Top (Surface) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

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 Flower Stingray (6–7.5) and Malawi Hawk (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 Flower Stingray and Malawi Hawk together, plan for an aquarium of at least 1700 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). 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

Flower Stingray and Malawi Hawk 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 Flower Stingray and Malawi Hawk live together?

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

What size tank do Flower Stingray and Malawi Hawk need?

A minimum of 1700 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 Flower Stingray and Malawi Hawk 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 Flower Stingray or Malawi Hawk aggressive?

Flower Stingray is moderately assertive (6/10) and Malawi Hawk is semi-aggressive (7/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Flower Stingray and Malawi Hawk need?

Their pH requirements do not overlap. Flower Stingray prefers 6–7.5, while Malawi Hawk needs 7.8–8.6. This makes them incompatible in the same water chemistry.

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.

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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