Can Featherfin Cichlid and Spotted Hillstream Loach Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Featherfin Cichlid and Spotted Hillstream Loach 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

Featherfin Cichlid

Cyathopharynx furcifer

Spotted Hillstream Loach

Gastromyzon punctulatus

🐠Family Group
Featherfin Cichlid
Cichlids - African
Spotted Hillstream Loach
Loaches
Temperament
Featherfin Cichlid
Semi-Aggressive (6/10)
Spotted Hillstream Loach
Peaceful (2/10)
Temperature
✓ Compatible
Featherfin Cichlid
24–27°C
Spotted Hillstream Loach
20–24°C
pH Range
✗ No overlap
Featherfin Cichlid
8–9.2
Spotted Hillstream Loach
6.5–7.5
Hardness (dGH)
✓ Compatible
Featherfin Cichlid
10–25
Spotted Hillstream Loach
2–12
Water Type
✓ Compatible
Featherfin Cichlid
Freshwater Only
Spotted Hillstream Loach
Freshwater Only
Flow Preference
✓ Compatible
Featherfin Cichlid
Moderate
Spotted Hillstream Loach
High
Min Tank Volume
Combined: 664 L
Featherfin Cichlid
550 L
Spotted Hillstream Loach
55 L
Swimming Level
Shared: 1 zone
Featherfin Cichlid
MiddleBottom
Spotted Hillstream Loach
Bottom
🏷️Behavior Tags
Featherfin Cichlid
Digger (Disturbs Substrate)Territorial (Defends specific area)Aggressive to same species/look-alikesHyperactive / Fast Swimmer
Spotted Hillstream Loach
Territorial (Defends specific area)
Stocking calculator

Can your tank handle Featherfin Cichlid and Spotted Hillstream Loach?

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.

Featherfin Cichlid
Spotted Hillstream Loach
Test both in my tank

Behaviour & Temperament

Featherfin Cichlid is a moderately assertive species (6/10), while Spotted Hillstream Loach is peaceful (2/10). This notable difference means Featherfin Cichlid may occasionally assert dominance over Spotted Hillstream Loach.

Featherfin Cichlid and Spotted Hillstream Loach both frequent the 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.

Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.

Water Parameters

The safe temperature window for both species falls between 24°C and 24°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

The pH requirements of Featherfin Cichlid (8–9.2) and Spotted Hillstream Loach (6.5–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Featherfin Cichlid and Spotted Hillstream Loach together, plan for an aquarium of at least 664 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), Established Algae (Otocinclus). 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

Featherfin Cichlid and Spotted Hillstream Loach 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 Featherfin Cichlid and Spotted Hillstream Loach.

Frequently Asked Questions

Can Featherfin Cichlid and Spotted Hillstream Loach live together?

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

What size tank do Featherfin Cichlid and Spotted Hillstream Loach need?

A minimum of 664 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 Featherfin Cichlid and Spotted Hillstream Loach together?

Keep the aquarium between 24°C and 24°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Featherfin Cichlid or Spotted Hillstream Loach aggressive?

Featherfin Cichlid is moderately assertive (6/10) and Spotted Hillstream Loach is peaceful (2/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Featherfin Cichlid and Spotted Hillstream Loach need?

Their pH requirements do not overlap. Featherfin Cichlid prefers 8–9.2, while Spotted Hillstream Loach needs 6.5–7.5. This makes them incompatible in the same water chemistry.

How do I manage Featherfin Cichlid's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Featherfin 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?
Contact the editorial team

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