Can Taiwan Reef Cichlid and Tinfoil Barb Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Taiwan Reef Cichlid and Tinfoil Barb are not recommended as tank mates due to conflicting pH requirements. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Taiwan Reef Cichlid

Protomelas sp. "Steveni Taiwan"

Tinfoil Barb

Barbonymus schwanenfeldii

🐠Family Group
Taiwan Reef Cichlid
Cichlids - African
Tinfoil Barb
Cyprinids
Temperament
Taiwan Reef Cichlid
Semi-Aggressive (6/10)
Tinfoil Barb
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Taiwan Reef Cichlid
24–28°C
Tinfoil Barb
22–28°C
pH Range
✗ No overlap
Taiwan Reef Cichlid
7.8–8.6
Tinfoil Barb
6.5–7.5
Hardness (dGH)
✓ Compatible
Taiwan Reef Cichlid
10–20
Tinfoil Barb
2–15
Water Type
✓ Compatible
Taiwan Reef Cichlid
Freshwater Only
Tinfoil Barb
Freshwater Only
Flow Preference
✓ Compatible
Taiwan Reef Cichlid
Moderate
Tinfoil Barb
High
Min Tank Volume
Combined: 680 L
Taiwan Reef Cichlid
280 L
Tinfoil Barb
680 L
Swimming Level
Shared: 2 zones
Taiwan Reef Cichlid
MiddleBottom
Tinfoil Barb
MiddleBottom
🏷️Behavior Tags
Taiwan Reef Cichlid
Territorial (Defends specific area)Aggressive to same species/look-alikesHyperactive / Fast SwimmerDigger (Disturbs Substrate)Plant DestroyerFry Predator
Tinfoil Barb
Hyperactive / Fast SwimmerPiscivore (Eats small/nano fish)Plant DestroyerJumper (Lid Required)Shrimp EaterAggressive Eater (Starves shy fish)
Stocking calculator

Can your tank handle Taiwan Reef Cichlid and Tinfoil Barb?

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.

Taiwan Reef Cichlid
Tinfoil Barb
Test both in my tank

Behaviour & Temperament

Taiwan Reef Cichlid is a moderately assertive species (6/10), while Tinfoil Barb is generally mild-mannered (3/10). This modest difference means Taiwan Reef Cichlid may occasionally assert dominance over Tinfoil Barb.

Taiwan Reef Cichlid and Tinfoil Barb both frequent the Middle (Open Water) and Bottom (Substrate) 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: Tinfoil Barb 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 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

The pH requirements of Taiwan Reef Cichlid (7.8–8.6) and Tinfoil Barb (6.5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Taiwan Reef Cichlid and Tinfoil Barb together, plan for an aquarium of at least 680 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: Sand (Sifters), Smooth Gravel (Sensitive Barbels). 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

Taiwan Reef Cichlid and Tinfoil Barb 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 Taiwan Reef Cichlid and Tinfoil Barb.

Frequently Asked Questions

Can Taiwan Reef Cichlid and Tinfoil Barb live together?

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

What size tank do Taiwan Reef Cichlid and Tinfoil Barb need?

A minimum of 680 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 Taiwan Reef Cichlid and Tinfoil Barb together?

Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.

Are Taiwan Reef Cichlid or Tinfoil Barb aggressive?

Taiwan Reef Cichlid is moderately assertive (6/10) and Tinfoil Barb is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Taiwan Reef Cichlid and Tinfoil Barb need?

Their pH requirements do not overlap. Taiwan Reef Cichlid prefers 7.8–8.6, while Tinfoil Barb needs 6.5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Taiwan Reef Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Taiwan Reef Cichlid 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 11, 2026
Last updated
May 11, 2026
Issues or corrections?
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