Can Bronze Corydoras and Pacific Blue Eye Live Together?

Ideal Tank Mates

Yes, Bronze Corydoras and Pacific Blue Eye are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. They occupy different areas of the water column, which reduces competition for space. A minimum tank size of 60 litres is recommended.


At a Glance

Bronze Corydoras

Corydoras aeneus

Pacific Blue Eye

Pseudomugil signifer

🐠Family Group
Bronze Corydoras
Catfish
Pacific Blue Eye
Rainbowfish
Temperament
Bronze Corydoras
Peaceful (1/10)
Pacific Blue Eye
Peaceful (2/10)
Temperature
✓ Compatible
Bronze Corydoras
22–27°C
Pacific Blue Eye
20–26°C
pH Range
✓ Compatible
Bronze Corydoras
6–7.5
Pacific Blue Eye
6.5–8
Hardness (dGH)
✓ Compatible
Bronze Corydoras
2–15
Pacific Blue Eye
5–15
Water Type
✓ Compatible
Bronze Corydoras
Freshwater Only
Pacific Blue Eye
Brackish Tolerant
Flow Preference
✓ Compatible
Bronze Corydoras
Moderate
Pacific Blue Eye
Moderate
Min Tank Volume
Combined: 60 L
Bronze Corydoras
60 L
Pacific Blue Eye
60 L
Swimming Level
✓ Different zones
Bronze Corydoras
Bottom
Pacific Blue Eye
TopMiddle
🏷️Behavior Tags
Bronze Corydoras
Hyperactive / Fast SwimmerDigger (Disturbs Substrate)
Pacific Blue Eye
Nano / Bite-sized (Predation Risk)Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Stocking calculator

Can your tank handle Bronze Corydoras and Pacific Blue Eye?

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.

Bronze Corydoras
Pacific Blue Eye
Test both in my tank

Behaviour & Temperament

Bronze Corydoras is a peaceful species (1/10), while Pacific Blue Eye is peaceful (2/10). This modest difference means Pacific Blue Eye may occasionally assert dominance over Bronze Corydoras.

In terms of spatial distribution, Bronze Corydoras prefers the Bottom (Substrate) zone, whereas Pacific Blue Eye occupies the Top (Surface) and Middle (Open Water) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Pacific Blue Eye is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 22°C and 26°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 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.

Tank Setup

To house Bronze Corydoras and Pacific Blue Eye together, plan for an aquarium of at least 60 litres with a minimum length of 60 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), Plants - Densely covered. 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.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Bronze Corydoras and Pacific Blue Eye.

Show 19 more tank sizes

Frequently Asked Questions

Can Bronze Corydoras and Pacific Blue Eye live together?

Yes. Bronze Corydoras and Pacific Blue Eye are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Bronze Corydoras and Pacific Blue Eye need?

A minimum of 60 litres (tank length at least 60 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 Bronze Corydoras and Pacific Blue Eye together?

Keep the aquarium between 22°C and 26°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Bronze Corydoras or Pacific Blue Eye aggressive?

Bronze Corydoras is peaceful (1/10) and Pacific Blue Eye is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Bronze Corydoras and Pacific Blue Eye need?

Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


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