Can Neolamprologus Similis and Steindachner Dwarf Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Neolamprologus Similis and Steindachner Dwarf Cichlid 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

Neolamprologus Similis

Neolamprologus similis

Steindachner Dwarf Cichlid

Apistogramma steindachneri

🐠Family Group
Neolamprologus Similis
Cichlids - African
Steindachner Dwarf Cichlid
Cichlids - South American
Temperament
Neolamprologus Similis
Semi-Aggressive (6/10)
Steindachner Dwarf Cichlid
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Neolamprologus Similis
24–27°C
Steindachner Dwarf Cichlid
22–28°C
pH Range
✗ No overlap
Neolamprologus Similis
7.8–9
Steindachner Dwarf Cichlid
5–7.5
Hardness (dGH)
✓ Compatible
Neolamprologus Similis
10–25
Steindachner Dwarf Cichlid
1–12
Water Type
✓ Compatible
Neolamprologus Similis
Freshwater Only
Steindachner Dwarf Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Neolamprologus Similis
Moderate
Steindachner Dwarf Cichlid
Low
Min Tank Volume
Combined: 80 L
Neolamprologus Similis
38 L
Steindachner Dwarf Cichlid
80 L
Swimming Level
Shared: 1 zone
Neolamprologus Similis
Bottom
Steindachner Dwarf Cichlid
MiddleBottom
🏷️Behavior Tags
Neolamprologus Similis
Nano / Bite-sized (Predation Risk)Territorial (Defends specific area)Digger (Disturbs Substrate)Aggressive to same species/look-alikes
Steindachner Dwarf Cichlid
Territorial (Defends specific area)Shrimp EaterFry PredatorDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Neolamprologus Similis and Steindachner Dwarf Cichlid?

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.

Neolamprologus Similis
Steindachner Dwarf Cichlid
Test both in my tank

Behaviour & Temperament

Neolamprologus Similis is a moderately assertive species (6/10), while Steindachner Dwarf Cichlid is generally mild-mannered (4/10). This modest difference means Neolamprologus Similis may occasionally assert dominance over Steindachner Dwarf Cichlid.

Neolamprologus Similis and Steindachner Dwarf Cichlid both frequent the Bottom (Substrate) 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. Shrimp eaters may also prey on very small nano fish.

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 Neolamprologus Similis (7.8–9) and Steindachner Dwarf Cichlid (5–7.5) 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 Neolamprologus Similis and Steindachner Dwarf Cichlid together, plan for an aquarium of at least 80 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: Sand (Sifters), Shells (Breeding/Hiding), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.

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

Why This Pairing Usually Fails in Practice

Neolamprologus Similis and Steindachner Dwarf Cichlid 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 Neolamprologus Similis and Steindachner Dwarf Cichlid.

Show 10 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. Steindachner Dwarf Cichlid is a known shrimp eater and may prey on small invertebrates or nano fish like Neolamprologus Similis.

Frequently Asked Questions

Can Neolamprologus Similis and Steindachner Dwarf Cichlid live together?

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

What size tank do Neolamprologus Similis and Steindachner Dwarf Cichlid need?

A minimum of 80 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 Neolamprologus Similis and Steindachner Dwarf Cichlid 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 Neolamprologus Similis or Steindachner Dwarf Cichlid aggressive?

Neolamprologus Similis is moderately assertive (6/10) and Steindachner Dwarf Cichlid is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Neolamprologus Similis and Steindachner Dwarf Cichlid need?

Their pH requirements do not overlap. Neolamprologus Similis prefers 7.8–9, while Steindachner Dwarf Cichlid needs 5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Neolamprologus Similis's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Neolamprologus Similis 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 11, 2026
Last updated
May 11, 2026
Issues or corrections?
Contact the editorial team

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