Can Silver Dollar and White Cloud Mountain Minnow Live Together?

🔴Not Recommended

Silver Dollar and White Cloud Mountain Minnow are not recommended as tank mates due to no temperature overlap. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Silver Dollar

Metynnis argenteus

White Cloud Mountain Minnow

Tanichthys albonubes

🐠Family Group
Silver Dollar
Characins
White Cloud Mountain Minnow
Cyprinids
Temperament
Silver Dollar
Peaceful (2/10)
White Cloud Mountain Minnow
Peaceful (1/10)
Temperature
✗ No overlap
Silver Dollar
24–28°C
White Cloud Mountain Minnow
14–22°C
pH Range
✓ Compatible
Silver Dollar
5.5–7.5
White Cloud Mountain Minnow
6–8
Hardness (dGH)
✓ Compatible
Silver Dollar
4–15
White Cloud Mountain Minnow
5–20
Water Type
✓ Compatible
Silver Dollar
Freshwater Only
White Cloud Mountain Minnow
Freshwater Only
Flow Preference
✓ Compatible
Silver Dollar
Moderate
White Cloud Mountain Minnow
Moderate
Min Tank Volume
Combined: 336 L
Silver Dollar
280 L
White Cloud Mountain Minnow
38 L
Swimming Level
Shared: 2 zones
Silver Dollar
MiddleTop
White Cloud Mountain Minnow
TopMiddle
🏷️Behavior Tags
Silver Dollar
Plant DestroyerHyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)Jumper (Lid Required)
White Cloud Mountain Minnow
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)

Behaviour & Temperament

Silver Dollar is a peaceful species (2/10), while White Cloud Mountain Minnow is peaceful (1/10). This modest difference means Silver Dollar may occasionally assert dominance over White Cloud Mountain Minnow.

Silver Dollar and White Cloud Mountain Minnow both frequent the Middle (Open Water) and Top (Surface) 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

There is no temperature overlap between Silver Dollar (24–28°C) and White Cloud Mountain Minnow (14–22°C). This fundamental mismatch makes long-term cohabitation impractical.

Both fish can tolerate a pH between 6 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Silver Dollar and White Cloud Mountain Minnow together, plan for an aquarium of at least 336 litres with a minimum length of 120 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: Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels), Plants - Densely covered. Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Silver Dollar is a plant destroyer, which conflicts with White Cloud Mountain Minnow's requirement for live plants. Compromise where possible or prioritise the more critical need.

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 Silver Dollar and White Cloud Mountain Minnow live together?

No. This combination is not recommended. Key incompatibilities — such as non-overlapping temperature ranges — make cohabitation unsafe.

What size tank do Silver Dollar and White Cloud Mountain Minnow need?

A minimum of 336 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 Silver Dollar and White Cloud Mountain Minnow together?

Unfortunately, there is no temperature range that satisfies both species. Silver Dollar requires 24–28°C, while White Cloud Mountain Minnow needs 14–22°C.

Are Silver Dollar or White Cloud Mountain Minnow aggressive?

Silver Dollar is peaceful (2/10) and White Cloud Mountain Minnow is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Silver Dollar and White Cloud Mountain Minnow need?

Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


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