Can Orange Peacock and Redline Rasbora Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Orange Peacock and Redline Rasbora are not recommended as tank mates due to conflicting pH requirements and incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Orange Peacock

Aulonocara stuartgranti maleri

Redline Rasbora

Rasbora pauciperforata

🐠Family Group
Orange Peacock
Cichlids - African
Redline Rasbora
Cyprinids
Temperament
Orange Peacock
Semi-Aggressive (6/10)
Redline Rasbora
Peaceful (1/10)
Temperature
✓ Compatible
Orange Peacock
24–28°C
Redline Rasbora
22–27°C
pH Range
✗ No overlap
Orange Peacock
7.8–8.6
Redline Rasbora
4–6.8
Hardness (dGH)
✗ No overlap
Orange Peacock
10–25
Redline Rasbora
1–8
Water Type
✓ Compatible
Orange Peacock
Freshwater Only
Redline Rasbora
Freshwater Only
Flow Preference
✓ Compatible
Orange Peacock
Moderate
Redline Rasbora
Low
Min Tank Volume
Combined: 208 L
Orange Peacock
208 L
Redline Rasbora
80 L
Swimming Level
Shared: 1 zone
Orange Peacock
BottomMiddle
Redline Rasbora
TopMiddle
🏷️Behavior Tags
Orange Peacock
Digger (Disturbs Substrate)
Redline Rasbora
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)Jumper (Lid Required)
Stocking calculator

Can your tank handle Orange Peacock and Redline Rasbora?

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.

Orange Peacock
Redline Rasbora
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Behaviour & Temperament

Orange Peacock is a moderately assertive species (6/10), while Redline Rasbora is peaceful (1/10). This notable difference means Orange Peacock may occasionally assert dominance over Redline Rasbora.

Orange Peacock and Redline Rasbora 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.

Worth noting: Redline Rasbora 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 Orange Peacock (7.8–8.6) and Redline Rasbora (4–6.8) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Orange Peacock needs 10–25 dGH while Redline Rasbora requires 1–8 dGH.

Tank Setup

To house Orange Peacock and Redline Rasbora together, plan for an aquarium of at least 208 litres with a minimum length of 120 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), Smooth Gravel (Sensitive Barbels), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding), 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.

Why This Pairing Usually Fails in Practice

Orange Peacock and Redline Rasbora are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Orange Peacock and Redline Rasbora.

Show 5 more tank sizes

Frequently Asked Questions

Can Orange Peacock and Redline Rasbora live together?

No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.

What size tank do Orange Peacock and Redline Rasbora need?

A minimum of 208 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 Orange Peacock and Redline Rasbora 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 Orange Peacock or Redline Rasbora aggressive?

Orange Peacock is moderately assertive (6/10) and Redline Rasbora is peaceful (1/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Orange Peacock and Redline Rasbora need?

Their pH requirements do not overlap. Orange Peacock prefers 7.8–8.6, while Redline Rasbora needs 4–6.8. This makes them incompatible in the same water chemistry.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 11, 2026
Last updated
May 11, 2026
Issues or corrections?
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