Can German Blue Ram and Horei Cichlid Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 4, 2026
Not Recommended

German Blue Ram and Horei Cichlid 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

German Blue Ram

Mikrogeophagus ramirezi

Horei Cichlid

Ctenochromis horei

🐠Family Group
German Blue Ram
Cichlids - South American
Horei Cichlid
Cichlids - African
Temperament
German Blue Ram
Mostly Peaceful (4/10)
Horei Cichlid
Aggressive (8/10)
Temperature
✓ Compatible
German Blue Ram
27–30°C
Horei Cichlid
24–28°C
pH Range
✗ No overlap
German Blue Ram
5–7
Horei Cichlid
7.8–9
Hardness (dGH)
✗ No overlap
German Blue Ram
1–8
Horei Cichlid
10–25
Water Type
✓ Compatible
German Blue Ram
Freshwater Only
Horei Cichlid
Freshwater Only
Flow Preference
✓ Compatible
German Blue Ram
Low
Horei Cichlid
Moderate
Min Tank Volume
Combined: 208 L
German Blue Ram
60 L
Horei Cichlid
208 L
Swimming Level
Shared: 2 zones
German Blue Ram
MiddleBottom
Horei Cichlid
MiddleBottom
🏷️Behavior Tags
German Blue Ram
Territorial (Defends specific area)Digger (Disturbs Substrate)Fry PredatorShy / Slow Moving (Easily Stressed)
Horei Cichlid
Territorial (Defends specific area)Generally AggressiveAggressive to same species/look-alikesPiscivore (Eats small/nano fish)Digger (Disturbs Substrate)Fry Predator
Stocking calculator

Can your tank handle German Blue Ram and Horei Cichlid?

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.

German Blue Ram
Horei Cichlid
Test both in my tank

Behaviour & Temperament

German Blue Ram is a generally mild-mannered species (4/10), while Horei Cichlid is semi-aggressive (8/10). This notable difference means Horei Cichlid may occasionally assert dominance over German Blue Ram.

German Blue Ram and Horei Cichlid 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.

Additional behavioural considerations to keep in mind: Aggressive fish may bully and stress shy, slow-moving species. Two territorial species may clash over territory, especially in smaller tanks.

Water Parameters

The safe temperature window for both species falls between 27°C and 28°C. Aim for the midpoint of this range (around 27.5°C) for optimal comfort.

The pH requirements of German Blue Ram (5–7) and Horei Cichlid (7.8–9) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: German Blue Ram needs 1–8 dGH while Horei Cichlid requires 10–25 dGH.

Tank Setup

To house German Blue Ram and Horei Cichlid 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), Plants - Densely covered, Driftwood (Digestion/Hiding), Leaf Litter/Blackwater. 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

German Blue Ram and Horei Cichlid 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 German Blue Ram and Horei Cichlid.

Show 5 more tank sizes

Frequently Asked Questions

Can German Blue Ram and Horei Cichlid live together?

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

What size tank do German Blue Ram and Horei Cichlid 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 German Blue Ram and Horei Cichlid together?

Keep the aquarium between 27°C and 28°C. A target of around 27.5°C sits comfortably within both species' preferred ranges.

Are German Blue Ram or Horei Cichlid aggressive?

German Blue Ram is generally mild-mannered (4/10) and Horei Cichlid is semi-aggressive (8/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do German Blue Ram and Horei Cichlid need?

Their pH requirements do not overlap. German Blue Ram prefers 5–7, while Horei Cichlid needs 7.8–9. This makes them incompatible in the same water chemistry.

How do I manage German Blue Ram's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives German Blue Ram 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 4, 2026
Last updated
May 4, 2026
Issues or corrections?
Contact the editorial team

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