Can Festivum and Neolamprologus Pulcher Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Festivum and Neolamprologus Pulcher 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

Festivum

Mesonauta festivus

Neolamprologus Pulcher

Neolamprologus pulcher

🐠Family Group
Festivum
Cichlids - South American
Neolamprologus Pulcher
Cichlids - African
Temperament
Festivum
Mostly Peaceful (4/10)
Neolamprologus Pulcher
Aggressive (7/10)
Temperature
✓ Compatible
Festivum
24–28°C
Neolamprologus Pulcher
24–27°C
pH Range
✗ No overlap
Festivum
5.5–7.2
Neolamprologus Pulcher
8–9
Hardness (dGH)
✓ Compatible
Festivum
2–12
Neolamprologus Pulcher
10–25
Water Type
✓ Compatible
Festivum
Freshwater Only
Neolamprologus Pulcher
Freshwater Only
Flow Preference
✓ Compatible
Festivum
Low
Neolamprologus Pulcher
Moderate
Min Tank Volume
Combined: 150 L
Festivum
150 L
Neolamprologus Pulcher
75 L
Swimming Level
Shared: 1 zone
Festivum
TopMiddle
Neolamprologus Pulcher
MiddleBottom
🏷️Behavior Tags
Festivum
Plant DestroyerJumper (Lid Required)Territorial (Defends specific area)
Neolamprologus Pulcher
Territorial (Defends specific area)Generally AggressiveAggressive to same species/look-alikesDigger (Disturbs Substrate)Shrimp Eater
Stocking calculator

Can your tank handle Festivum 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.

Festivum
Neolamprologus Pulcher
Test both in my tank

Behaviour & Temperament

Festivum is a generally mild-mannered species (4/10), while Neolamprologus Pulcher is semi-aggressive (7/10). This modest difference means Neolamprologus Pulcher may occasionally assert dominance over Festivum.

Festivum 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: Two territorial species may clash over territory, especially in smaller tanks.

Worth noting: Festivum 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 27°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

The pH requirements of Festivum (5.5–7.2) and Neolamprologus Pulcher (8–9) 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 Festivum and Neolamprologus Pulcher together, plan for an aquarium of at least 150 litres with a minimum length of 90 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: 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

Festivum 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 Festivum and Neolamprologus Pulcher.

Show 9 more tank sizes

Frequently Asked Questions

Can Festivum 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 Festivum and Neolamprologus Pulcher need?

A minimum of 150 litres (tank length at least 90 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 Festivum 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 Festivum or Neolamprologus Pulcher aggressive?

Festivum is generally mild-mannered (4/10) and Neolamprologus Pulcher is semi-aggressive (7/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Festivum and Neolamprologus Pulcher need?

Their pH requirements do not overlap. Festivum prefers 5.5–7.2, while Neolamprologus Pulcher needs 8–9. This makes them incompatible in the same water chemistry.

How do I manage Festivum's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Festivum 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?
Contact the editorial team

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