Can Scarlet Badis and Trout Cichlid (Champsochromis) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 3, 2026
Not Recommended

Scarlet Badis and Trout Cichlid (Champsochromis) are not recommended as tank mates due to piscivorous fish will prey on nano-sized tank mates.. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Scarlet Badis

Dario dario

Trout Cichlid (Champsochromis)

Champsochromis caeruleus

🐠Family Group
Scarlet Badis
Other
Trout Cichlid (Champsochromis)
Cichlids - African
Temperament
Scarlet Badis
Mostly Peaceful (3/10)
Trout Cichlid (Champsochromis)
Aggressive (7/10)
Temperature
✓ Compatible
Scarlet Badis
18–26°C
Trout Cichlid (Champsochromis)
24–28°C
pH Range
✓ Compatible
Scarlet Badis
6.5–8.5
Trout Cichlid (Champsochromis)
7.8–8.6
Hardness (dGH)
✓ Compatible
Scarlet Badis
4–20
Trout Cichlid (Champsochromis)
10–25
Water Type
✓ Compatible
Scarlet Badis
Freshwater Only
Trout Cichlid (Champsochromis)
Freshwater Only
Flow Preference
✓ Compatible
Scarlet Badis
Low
Trout Cichlid (Champsochromis)
Moderate
Min Tank Volume
Combined: 500 L
Scarlet Badis
20 L
Trout Cichlid (Champsochromis)
500 L
Swimming Level
Shared: 1 zone
Scarlet Badis
MiddleBottom
Trout Cichlid (Champsochromis)
TopMiddle
🏷️Behavior Tags
Scarlet Badis
Nano / Bite-sized (Predation Risk)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)Aggressive to same species/look-alikesTerritorial (Defends specific area)
Trout Cichlid (Champsochromis)
Piscivore (Eats small/nano fish)Hyperactive / Fast SwimmerJumper (Lid Required)Territorial (Defends specific area)Aggressive to same species/look-alikes
Stocking calculator

Can your tank handle Scarlet Badis and Trout Cichlid (Champsochromis)?

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.

Scarlet Badis
Trout Cichlid (Champsochromis)
Test both in my tank

Behaviour & Temperament

Scarlet Badis is a generally mild-mannered species (3/10), while Trout Cichlid (Champsochromis) is semi-aggressive (7/10). This notable difference means Trout Cichlid (Champsochromis) may occasionally assert dominance over Scarlet Badis.

Scarlet Badis and Trout Cichlid (Champsochromis) 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.

There is a critical concern: the Nano / Bite-sized (Predation Risk) behaviour of one fish directly conflicts with the Piscivore (Eats small/nano fish) trait of the other — piscivorous fish will prey on nano-sized tank mates..

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Two territorial species may clash over territory, especially in smaller tanks.

Worth noting: Trout Cichlid (Champsochromis) 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 26°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

Both fish can tolerate a pH between 7.8 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 10–20 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Scarlet Badis and Trout Cichlid (Champsochromis) together, plan for an aquarium of at least 500 litres with a minimum length of 180 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: Plants - Densely covered, Plants - lighly covered, Sand (Sifters). Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Usually Fails in Practice

Scarlet Badis and Trout Cichlid (Champsochromis) 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 Scarlet Badis and Trout Cichlid (Champsochromis).

Frequently Asked Questions

Can Scarlet Badis and Trout Cichlid (Champsochromis) live together?

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

What size tank do Scarlet Badis and Trout Cichlid (Champsochromis) need?

A minimum of 500 litres (tank length at least 180 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 Scarlet Badis and Trout Cichlid (Champsochromis) together?

Keep the aquarium between 24°C and 26°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Scarlet Badis or Trout Cichlid (Champsochromis) aggressive?

Scarlet Badis is generally mild-mannered (3/10) and Trout Cichlid (Champsochromis) is semi-aggressive (7/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Scarlet Badis and Trout Cichlid (Champsochromis) need?

Both species overlap in the 7.8–8.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Scarlet Badis's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Scarlet Badis space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.

Editorial Review

Guidarium Editorial Desk

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

Last reviewed
May 3, 2026
Last updated
May 3, 2026
Issues or corrections?
Contact the editorial team

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