Can African Clawed Frog and Dusky Millions Fish Live Together?

Possible with Caution

Keeping African Clawed Frog and Dusky Millions Fish together is possible but requires caution due to differing aggression levels. Provide a spacious tank of at least 75 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

African Clawed Frog

Xenopus laevis

Dusky Millions Fish

Phalloceros caudimaculatus

🐠Family Group
African Clawed Frog
Other
Dusky Millions Fish
Livebearers
Temperament
African Clawed Frog
Aggressive (8/10)
Dusky Millions Fish
Peaceful (2/10)
Temperature
✓ Compatible
African Clawed Frog
16–24°C
Dusky Millions Fish
16–24°C
pH Range
✓ Compatible
African Clawed Frog
6.5–8
Dusky Millions Fish
7–8
Hardness (dGH)
✓ Compatible
African Clawed Frog
5–20
Dusky Millions Fish
8–20
Water Type
✓ Compatible
African Clawed Frog
Freshwater Only
Dusky Millions Fish
Brackish Tolerant
Flow Preference
✓ Compatible
African Clawed Frog
Low
Dusky Millions Fish
Low
Min Tank Volume
Combined: 75 L
African Clawed Frog
75 L
Dusky Millions Fish
40 L
Swimming Level
Shared: 2 zones
African Clawed Frog
BottomMiddleTop
Dusky Millions Fish
TopMiddle
🏷️Behavior Tags
African Clawed Frog
Piscivore (Eats small/nano fish)Shrimp EaterSnail EaterFry PredatorJumper (Lid Required)Hyperactive / Fast SwimmerPlant DestroyerDigger (Disturbs Substrate)Aggressive Eater (Starves shy fish)
Dusky Millions Fish
Hyperactive / Fast SwimmerPlant DestroyerFin Nipper
Stocking calculator

Can your tank handle African Clawed Frog and Dusky Millions Fish?

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.

African Clawed Frog
Dusky Millions Fish
Test both in my tank

Behaviour & Temperament

African Clawed Frog is a semi-aggressive species (8/10), while Dusky Millions Fish is peaceful (2/10). This notable difference means African Clawed Frog may occasionally assert dominance over Dusky Millions Fish.

Large aggression gap (6 points) between African Clawed Frog and Dusky Millions Fish increases stress risk for the more peaceful fish.

African Clawed Frog and Dusky Millions Fish 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: African Clawed Frog is a known jumper, so a tight-fitting lid is essential.

To improve the chances of a peaceful coexistence in this community tank: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat. Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.

Water Parameters

The safe temperature window for both species falls between 16°C and 24°C. Aim for the midpoint of this range (around 20.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 8–20 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house African Clawed Frog and Dusky Millions Fish together, plan for an aquarium of at least 75 litres with a minimum length of 60 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Smooth Gravel (Sensitive Barbels), Plants - Densely covered, Plants - Floating, Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: African Clawed Frog is a plant destroyer, which conflicts with Dusky Millions Fish's requirement for live plants. Compromise where possible or prioritise the more critical need.

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 African Clawed Frog and Dusky Millions Fish.

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Frequently Asked Questions

Can African Clawed Frog and Dusky Millions Fish live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 75 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do African Clawed Frog and Dusky Millions Fish need?

A minimum of 75 litres (tank length at least 60 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 African Clawed Frog and Dusky Millions Fish together?

Keep the aquarium between 16°C and 24°C. A target of around 20.0°C sits comfortably within both species' preferred ranges.

Are African Clawed Frog or Dusky Millions Fish aggressive?

African Clawed Frog is semi-aggressive (8/10) and Dusky Millions Fish is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do African Clawed Frog and Dusky Millions Fish need?

Both species overlap in the 7–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Dusky Millions Fish nip African Clawed Frog's fins?

Dusky Millions Fish is a known fin nipper. If African Clawed Frog has long or flowing fins, there is a real risk of fin damage. Keeping Dusky Millions Fish in a larger group can help redirect nipping behaviour toward conspecifics.


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