Can Celebes Rainbowfish and Giant Danio Live Together?

🟢Ideal Tank Mates

Yes, Celebes Rainbowfish and Giant Danio are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 132 litres is recommended.


At a Glance

Celebes Rainbowfish

Marosatherina ladigesi

Giant Danio

Devario aequipinnatus

🐠Family Group
Celebes Rainbowfish
Rainbowfish
Giant Danio
Cyprinids
Temperament
Celebes Rainbowfish
Peaceful (2/10)
Giant Danio
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Celebes Rainbowfish
22–28°C
Giant Danio
22–28°C
pH Range
✓ Compatible
Celebes Rainbowfish
7–8.5
Giant Danio
6–8
Hardness (dGH)
✓ Compatible
Celebes Rainbowfish
10–25
Giant Danio
5–20
Water Type
✓ Compatible
Celebes Rainbowfish
Brackish Tolerant
Giant Danio
Freshwater Only
Flow Preference
✓ Compatible
Celebes Rainbowfish
Moderate
Giant Danio
High
Min Tank Volume
Combined: 132 L
Celebes Rainbowfish
75 L
Giant Danio
110 L
Swimming Level
Shared: 2 zones
Celebes Rainbowfish
TopMiddle
Giant Danio
TopMiddle
🏷️Behavior Tags
Celebes Rainbowfish
Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Giant Danio
Hyperactive / Fast SwimmerJumper (Lid Required)Aggressive Eater (Starves shy fish)

Behaviour & Temperament

Celebes Rainbowfish is a peaceful species (2/10), while Giant Danio is generally mild-mannered (3/10). This modest difference means Giant Danio may occasionally assert dominance over Celebes Rainbowfish.

Celebes Rainbowfish and Giant Danio both frequent the Top (Surface) and 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: Celebes Rainbowfish 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 28°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 10–20 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Celebes Rainbowfish and Giant Danio together, plan for an aquarium of at least 132 litres with a minimum length of 90 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: Plants - lighly 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.

Frequently Asked Questions

Can Celebes Rainbowfish and Giant Danio live together?

Yes. Celebes Rainbowfish and Giant Danio are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Celebes Rainbowfish and Giant Danio need?

A minimum of 132 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 Celebes Rainbowfish and Giant Danio together?

Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Celebes Rainbowfish or Giant Danio aggressive?

Celebes Rainbowfish is peaceful (2/10) and Giant Danio is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Celebes Rainbowfish and Giant Danio need?

Both species overlap in the 7–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


Related Comparisons