Can Celebes Rainbowfish and Red Rainbowfish Live Together?

🟢Ideal Tank Mates

Yes, Celebes Rainbowfish and Red Rainbowfish 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 240 litres is recommended.


At a Glance

Celebes Rainbowfish

Marosatherina ladigesi

Red Rainbowfish

Glossolepis incisus

🐟Family Group
Celebes Rainbowfish
Rainbowfish
Red Rainbowfish
Rainbowfish
Temperament
Celebes Rainbowfish
Peaceful (2/10)
Red Rainbowfish
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Celebes Rainbowfish
22–28°C
Red Rainbowfish
22–28°C
pH Range
✓ Compatible
Celebes Rainbowfish
7–8.5
Red Rainbowfish
7–8.5
Hardness (dGH)
✓ Compatible
Celebes Rainbowfish
10–25
Red Rainbowfish
10–25
Water Type
✓ Compatible
Celebes Rainbowfish
Brackish Tolerant
Red Rainbowfish
Freshwater Only
Flow Preference
✓ Compatible
Celebes Rainbowfish
Moderate
Red Rainbowfish
Moderate
Min Tank Volume
Combined: 240 L
Celebes Rainbowfish
75 L
Red Rainbowfish
200 L
Swimming Level
Shared: 2 zones
Celebes Rainbowfish
TopMiddle
Red Rainbowfish
MiddleTop
🏷️Behavior Tags
Celebes Rainbowfish
Hyperactive / Fast SwimmerJumper (Lid Required)Fry Predator
Red Rainbowfish
Hyperactive / Fast SwimmerJumper (Lid Required)Aggressive Eater (Starves shy fish)Fry Predator

Behaviour & Temperament

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

Celebes Rainbowfish and Red Rainbowfish 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 8.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 10–25 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Celebes Rainbowfish and Red Rainbowfish together, plan for an aquarium of at least 240 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: Plants - lighly covered, Plants - Densely covered, Plants - Floating. 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 Red Rainbowfish live together?

Yes. Celebes Rainbowfish and Red Rainbowfish 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 Red Rainbowfish need?

A minimum of 240 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 Celebes Rainbowfish and Red Rainbowfish 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 Red Rainbowfish aggressive?

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

What pH do Celebes Rainbowfish and Red Rainbowfish need?

Both species overlap in the 7–8.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.


Related Comparisons