Can Neolamprologus Fasciatus and Silver Dollar Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Neolamprologus Fasciatus and Silver Dollar 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 Fasciatus

Neolamprologus fasciatus

Silver Dollar

Metynnis argenteus

🐠Family Group
Neolamprologus Fasciatus
Cichlids - African
Silver Dollar
Characins
Temperament
Neolamprologus Fasciatus
Semi-Aggressive (6/10)
Silver Dollar
Peaceful (2/10)
Temperature
✓ Compatible
Neolamprologus Fasciatus
24–27°C
Silver Dollar
24–28°C
pH Range
✗ No overlap
Neolamprologus Fasciatus
7.8–9
Silver Dollar
5.5–7.5
Hardness (dGH)
✓ Compatible
Neolamprologus Fasciatus
10–25
Silver Dollar
4–15
Water Type
✓ Compatible
Neolamprologus Fasciatus
Freshwater Only
Silver Dollar
Freshwater Only
Flow Preference
✓ Compatible
Neolamprologus Fasciatus
Moderate
Silver Dollar
Moderate
Min Tank Volume
Combined: 280 L
Neolamprologus Fasciatus
200 L
Silver Dollar
280 L
Swimming Level
Shared: 1 zone
Neolamprologus Fasciatus
BottomMiddle
Silver Dollar
MiddleTop
🏷️Behavior Tags
Neolamprologus Fasciatus
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorTerritorial (Defends specific area)Aggressive to same species/look-alikes
Silver Dollar
Plant DestroyerHyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)Jumper (Lid Required)
Stocking calculator

Can your tank handle Neolamprologus Fasciatus and Silver Dollar?

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 Fasciatus
Silver Dollar
Test both in my tank

Behaviour & Temperament

Neolamprologus Fasciatus is a moderately assertive species (6/10), while Silver Dollar is peaceful (2/10). This notable difference means Neolamprologus Fasciatus may occasionally assert dominance over Silver Dollar.

Neolamprologus Fasciatus and Silver Dollar 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.

Worth noting: Silver Dollar 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 Neolamprologus Fasciatus (7.8–9) and Silver Dollar (5.5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Neolamprologus Fasciatus and Silver Dollar together, plan for an aquarium of at least 280 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: Sand (Sifters), Shells (Breeding/Hiding), Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels). 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 Fasciatus and Silver Dollar 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 Fasciatus and Silver Dollar.

Show 1 more tank size

Frequently Asked Questions

Can Neolamprologus Fasciatus and Silver Dollar live together?

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

What size tank do Neolamprologus Fasciatus and Silver Dollar need?

A minimum of 280 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 Neolamprologus Fasciatus and Silver Dollar 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 Fasciatus or Silver Dollar aggressive?

Neolamprologus Fasciatus is moderately assertive (6/10) and Silver Dollar is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Neolamprologus Fasciatus and Silver Dollar need?

Their pH requirements do not overlap. Neolamprologus Fasciatus prefers 7.8–9, while Silver Dollar needs 5.5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Neolamprologus Fasciatus's territorial behaviour?

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