Can Frontosa and Silver Dollar Live Together?

🔴Not Recommended

Frontosa 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

Frontosa

Cyphotilapia frontosa

Silver Dollar

Metynnis argenteus

🐠Family Group
Frontosa
Cichlids - African
Silver Dollar
Characins
Temperament
Frontosa
Semi-Aggressive (5/10)
Silver Dollar
Peaceful (2/10)
Temperature
✓ Compatible
Frontosa
23–27°C
Silver Dollar
24–28°C
pH Range
✗ No overlap
Frontosa
8–9
Silver Dollar
5.5–7.5
Hardness (dGH)
✓ Compatible
Frontosa
12–25
Silver Dollar
4–15
Water Type
✓ Compatible
Frontosa
Freshwater Only
Silver Dollar
Freshwater Only
Flow Preference
✓ Compatible
Frontosa
Moderate
Silver Dollar
Moderate
Min Tank Volume
Combined: 570 L
Frontosa
475 L
Silver Dollar
280 L
Swimming Level
Shared: 1 zone
Frontosa
MiddleBottom
Silver Dollar
MiddleTop
🏷️Behavior Tags
Frontosa
Piscivore (Eats small/nano fish)Territorial (Defends specific area)Fry PredatorDigger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)
Silver Dollar
Plant DestroyerHyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)Jumper (Lid Required)

Behaviour & Temperament

Frontosa is a moderately assertive species (5/10), while Silver Dollar is peaceful (2/10). This modest difference means Frontosa may occasionally assert dominance over Silver Dollar.

Frontosa 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.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

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 Frontosa (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 12–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Frontosa and Silver Dollar together, plan for an aquarium of at least 570 litres with a minimum length of 180 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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), Smooth Gravel (Sensitive Barbels), 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.

Find the right tank equipment

Browse tanks, décor, and equipment suited for this setup.

Frequently Asked Questions

Can Frontosa 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 Frontosa and Silver Dollar need?

A minimum of 570 litres (tank length at least 180 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 Frontosa 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 Frontosa or Silver Dollar aggressive?

Frontosa is moderately assertive (5/10) and Silver Dollar is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Frontosa and Silver Dollar need?

Their pH requirements do not overlap. Frontosa prefers 8–9, while Silver Dollar needs 5.5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Frontosa's territorial behaviour?

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


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