Can Marbled Hatchetfish and Sulphur Crest Lithobates Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Not Recommended

Marbled Hatchetfish and Sulphur Crest Lithobates 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

Marbled Hatchetfish

Carnegiella strigata

Sulphur Crest Lithobates

Otopharynx lithobates

🐠Family Group
Marbled Hatchetfish
Characins
Sulphur Crest Lithobates
Cichlids - African
Temperament
Marbled Hatchetfish
Peaceful (1/10)
Sulphur Crest Lithobates
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Marbled Hatchetfish
24–28°C
Sulphur Crest Lithobates
24–28°C
pH Range
✗ No overlap
Marbled Hatchetfish
5.5–7.5
Sulphur Crest Lithobates
7.8–8.6
Hardness (dGH)
✓ Compatible
Marbled Hatchetfish
1–12
Sulphur Crest Lithobates
10–25
Water Type
✓ Compatible
Marbled Hatchetfish
Freshwater Only
Sulphur Crest Lithobates
Freshwater Only
Flow Preference
✓ Compatible
Marbled Hatchetfish
Low
Sulphur Crest Lithobates
Moderate
Min Tank Volume
Combined: 250 L
Marbled Hatchetfish
60 L
Sulphur Crest Lithobates
250 L
Swimming Level
✓ Different zones
Marbled Hatchetfish
Top
Sulphur Crest Lithobates
MiddleBottom
🏷️Behavior Tags
Marbled Hatchetfish
Jumper (Lid Required)Shy / Slow Moving (Easily Stressed)
Sulphur Crest Lithobates
Territorial (Defends specific area)Aggressive to same species/look-alikesFry Predator
Stocking calculator

Can your tank handle Marbled Hatchetfish and Sulphur Crest Lithobates?

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.

Marbled Hatchetfish
Sulphur Crest Lithobates
Test both in my tank

Behaviour & Temperament

Marbled Hatchetfish is a peaceful species (1/10), while Sulphur Crest Lithobates is moderately assertive (6/10). This notable difference means Sulphur Crest Lithobates may occasionally assert dominance over Marbled Hatchetfish.

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

Worth noting: Marbled Hatchetfish 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 Marbled Hatchetfish (5.5–7.5) and Sulphur Crest Lithobates (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 Marbled Hatchetfish and Sulphur Crest Lithobates together, plan for an aquarium of at least 250 litres with a minimum length of 120 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: Plants - Floating, Leaf Litter/Blackwater, 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

Marbled Hatchetfish and Sulphur Crest Lithobates 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 Marbled Hatchetfish and Sulphur Crest Lithobates.

Show 1 more tank size

Frequently Asked Questions

Can Marbled Hatchetfish and Sulphur Crest Lithobates live together?

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

What size tank do Marbled Hatchetfish and Sulphur Crest Lithobates need?

A minimum of 250 litres (tank length at least 120 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 Marbled Hatchetfish and Sulphur Crest Lithobates 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 Marbled Hatchetfish or Sulphur Crest Lithobates aggressive?

Marbled Hatchetfish is peaceful (1/10) and Sulphur Crest Lithobates is moderately assertive (6/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Marbled Hatchetfish and Sulphur Crest Lithobates need?

Their pH requirements do not overlap. Marbled Hatchetfish prefers 5.5–7.5, while Sulphur Crest Lithobates needs 7.8–8.6. This makes them incompatible in the same water chemistry.

How do I manage Sulphur Crest Lithobates's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Sulphur Crest Lithobates 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 7, 2026
Last updated
May 7, 2026
Issues or corrections?
Contact the editorial team

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