Can African Clawed Frog and Marlier's Julie Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

African Clawed Frog and Marlier's Julie 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

African Clawed Frog

Xenopus laevis

Marlier's Julie

Julidochromis marlieri

🐠Family Group
African Clawed Frog
Other
Marlier's Julie
Cichlids - African
Temperament
African Clawed Frog
Aggressive (8/10)
Marlier's Julie
Semi-Aggressive (6/10)
Temperature
✓ Compatible
African Clawed Frog
16–24°C
Marlier's Julie
23–27°C
pH Range
✗ No overlap
African Clawed Frog
6.5–8
Marlier's Julie
8.2–9.3
Hardness (dGH)
✓ Compatible
African Clawed Frog
5–20
Marlier's Julie
10–25
Water Type
✓ Compatible
African Clawed Frog
Freshwater Only
Marlier's Julie
Freshwater Only
Flow Preference
✓ Compatible
African Clawed Frog
Low
Marlier's Julie
Moderate
Min Tank Volume
Combined: 114 L
African Clawed Frog
75 L
Marlier's Julie
114 L
Swimming Level
Shared: 2 zones
African Clawed Frog
BottomMiddleTop
Marlier's Julie
BottomMiddle
🏷️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)
Marlier's Julie
Territorial (Defends specific area)Aggressive to same species/look-alikesDigger (Disturbs Substrate)Fry Predator
Stocking calculator

Can your tank handle African Clawed Frog and Marlier's Julie?

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
Marlier's Julie
Test both in my tank

Behaviour & Temperament

African Clawed Frog is a semi-aggressive species (8/10), while Marlier's Julie is moderately assertive (6/10). This modest difference means African Clawed Frog may occasionally assert dominance over Marlier's Julie.

African Clawed Frog and Marlier's Julie both frequent the Bottom (Substrate) and Middle (Open Water) 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.

Water Parameters

The safe temperature window for both species falls between 23°C and 24°C. Aim for the midpoint of this range (around 23.5°C) for optimal comfort.

The pH requirements of African Clawed Frog (6.5–8) and Marlier's Julie (8.2–9.3) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–20 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house African Clawed Frog and Marlier's Julie together, plan for an aquarium of at least 114 litres with a minimum length of 80 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: Smooth Gravel (Sensitive Barbels), Sand (Sifters). Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Usually Fails in Practice

African Clawed Frog and Marlier's Julie 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 African Clawed Frog and Marlier's Julie.

Show 11 more tank sizes

Frequently Asked Questions

Can African Clawed Frog and Marlier's Julie live together?

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

What size tank do African Clawed Frog and Marlier's Julie need?

A minimum of 114 litres (tank length at least 80 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 Marlier's Julie together?

Keep the aquarium between 23°C and 24°C. A target of around 23.5°C sits comfortably within both species' preferred ranges.

Are African Clawed Frog or Marlier's Julie aggressive?

African Clawed Frog is semi-aggressive (8/10) and Marlier's Julie is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do African Clawed Frog and Marlier's Julie need?

Their pH requirements do not overlap. African Clawed Frog prefers 6.5–8, while Marlier's Julie needs 8.2–9.3. This makes them incompatible in the same water chemistry.

How do I manage Marlier's Julie's territorial behaviour?

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