Can Amazon Leaf Fish and Neolamprologus Pulcher Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Amazon Leaf Fish and Neolamprologus Pulcher are not recommended as tank mates due to conflicting pH requirements and incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Amazon Leaf Fish

Monocirrhus polyacanthus

Neolamprologus Pulcher

Neolamprologus pulcher

🐠Family Group
Amazon Leaf Fish
Other
Neolamprologus Pulcher
Cichlids - African
Temperament
Amazon Leaf Fish
Peaceful (2/10)
Neolamprologus Pulcher
Aggressive (7/10)
Temperature
✓ Compatible
Amazon Leaf Fish
23–29°C
Neolamprologus Pulcher
24–27°C
pH Range
✗ No overlap
Amazon Leaf Fish
5–6.8
Neolamprologus Pulcher
8–9
Hardness (dGH)
✗ No overlap
Amazon Leaf Fish
0–8
Neolamprologus Pulcher
10–25
Water Type
✓ Compatible
Amazon Leaf Fish
Freshwater Only
Neolamprologus Pulcher
Freshwater Only
Flow Preference
✓ Compatible
Amazon Leaf Fish
Low
Neolamprologus Pulcher
Moderate
Min Tank Volume
Combined: 75 L
Amazon Leaf Fish
75 L
Neolamprologus Pulcher
75 L
Swimming Level
Shared: 1 zone
Amazon Leaf Fish
MiddleTop
Neolamprologus Pulcher
MiddleBottom
🏷️Behavior Tags
Amazon Leaf Fish
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)Nocturnal
Neolamprologus Pulcher
Territorial (Defends specific area)Generally AggressiveAggressive to same species/look-alikesDigger (Disturbs Substrate)Shrimp Eater
Stocking calculator

Can your tank handle Amazon Leaf Fish and Neolamprologus Pulcher?

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.

Amazon Leaf Fish
Neolamprologus Pulcher
Test both in my tank

Behaviour & Temperament

Amazon Leaf Fish is a peaceful species (2/10), while Neolamprologus Pulcher is semi-aggressive (7/10). This notable difference means Neolamprologus Pulcher may occasionally assert dominance over Amazon Leaf Fish.

Amazon Leaf Fish and Neolamprologus Pulcher both frequent the 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.

Additional behavioural considerations to keep in mind: Aggressive fish may bully and stress shy, slow-moving species.

Worth noting: Amazon Leaf Fish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

Water Parameters

The safe temperature window for both species falls between 24°C and 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

The pH requirements of Amazon Leaf Fish (5–6.8) and Neolamprologus Pulcher (8–9) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Amazon Leaf Fish needs 0–8 dGH while Neolamprologus Pulcher requires 10–25 dGH.

Tank Setup

To house Amazon Leaf Fish and Neolamprologus Pulcher 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.

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: Leaf Litter/Blackwater, Plants - Densely covered, Driftwood (Digestion/Hiding), Plants - Floating, 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

Amazon Leaf Fish and Neolamprologus Pulcher 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 Amazon Leaf Fish and Neolamprologus Pulcher.

Show 17 more tank sizes

Frequently Asked Questions

Can Amazon Leaf Fish and Neolamprologus Pulcher live together?

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

What size tank do Amazon Leaf Fish and Neolamprologus Pulcher 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 Amazon Leaf Fish and Neolamprologus Pulcher together?

Keep the aquarium between 24°C and 27°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.

Are Amazon Leaf Fish or Neolamprologus Pulcher aggressive?

Amazon Leaf Fish is peaceful (2/10) and Neolamprologus Pulcher is semi-aggressive (7/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Amazon Leaf Fish and Neolamprologus Pulcher need?

Their pH requirements do not overlap. Amazon Leaf Fish prefers 5–6.8, while Neolamprologus Pulcher needs 8–9. This makes them incompatible in the same water chemistry.

How do I manage Neolamprologus Pulcher's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Neolamprologus Pulcher 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.

Does Amazon Leaf Fish being nocturnal affect compatibility?

Amazon Leaf Fish is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Amazon Leaf Fish during evening hours.

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?
Contact the editorial team

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