Can Altum Angel and Venustus Cichlid (Giraffe Hap) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Not Recommended

Altum Angel and Venustus Cichlid (Giraffe Hap) 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

Altum Angel

Pterophyllum altum

Venustus Cichlid (Giraffe Hap)

Nimbochromis venustus

🐠Family Group
Altum Angel
Cichlids - South American
Venustus Cichlid (Giraffe Hap)
Cichlids - African
Temperament
Altum Angel
Semi-Aggressive (5/10)
Venustus Cichlid (Giraffe Hap)
Aggressive (8/10)
Temperature
✓ Compatible
Altum Angel
27–32°C
Venustus Cichlid (Giraffe Hap)
24–28°C
pH Range
✗ No overlap
Altum Angel
4.5–6.5
Venustus Cichlid (Giraffe Hap)
7.8–8.6
Hardness (dGH)
✗ No overlap
Altum Angel
1–5
Venustus Cichlid (Giraffe Hap)
10–25
Water Type
✓ Compatible
Altum Angel
Freshwater Only
Venustus Cichlid (Giraffe Hap)
Freshwater Only
Flow Preference
✓ Compatible
Altum Angel
Low
Venustus Cichlid (Giraffe Hap)
Moderate
Min Tank Volume
Combined: 475 L
Altum Angel
400 L
Venustus Cichlid (Giraffe Hap)
475 L
Swimming Level
Shared: 1 zone
Altum Angel
Middle
Venustus Cichlid (Giraffe Hap)
MiddleBottom
🏷️Behavior Tags
Altum Angel
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorTerritorial (Defends specific area)Shy / Slow Moving (Easily Stressed)
Venustus Cichlid (Giraffe Hap)
Piscivore (Eats small/nano fish)Generally AggressiveAggressive to same species/look-alikesTerritorial (Defends specific area)Hyperactive / Fast SwimmerDigger (Disturbs Substrate)
Stocking calculator

Can your tank handle Altum Angel and Venustus Cichlid (Giraffe Hap)?

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.

Altum Angel
Venustus Cichlid (Giraffe Hap)
Test both in my tank

Behaviour & Temperament

Altum Angel is a moderately assertive species (5/10), while Venustus Cichlid (Giraffe Hap) is semi-aggressive (8/10). This modest difference means Venustus Cichlid (Giraffe Hap) may occasionally assert dominance over Altum Angel.

Altum Angel and Venustus Cichlid (Giraffe Hap) 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.

Additional behavioural considerations to keep in mind: Aggressive fish may bully and stress shy, slow-moving species. Hyperactive swimmers can stress shy, slow-moving species through constant motion. 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 Altum Angel (4.5–6.5) and Venustus Cichlid (Giraffe Hap) (7.8–8.6) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Altum Angel needs 1–5 dGH while Venustus Cichlid (Giraffe Hap) requires 10–25 dGH.

Tank Setup

To house Altum Angel and Venustus Cichlid (Giraffe Hap) together, plan for an aquarium of at least 475 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), Driftwood (Digestion/Hiding), Leaf Litter/Blackwater, Plants - Floating, Smooth Gravel (Sensitive Barbels). 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

Altum Angel and Venustus Cichlid (Giraffe Hap) 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 Altum Angel and Venustus Cichlid (Giraffe Hap).

Frequently Asked Questions

Can Altum Angel and Venustus Cichlid (Giraffe Hap) live together?

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

What size tank do Altum Angel and Venustus Cichlid (Giraffe Hap) need?

A minimum of 475 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 Altum Angel and Venustus Cichlid (Giraffe Hap) 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 Altum Angel or Venustus Cichlid (Giraffe Hap) aggressive?

Altum Angel is moderately assertive (5/10) and Venustus Cichlid (Giraffe Hap) is semi-aggressive (8/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Altum Angel and Venustus Cichlid (Giraffe Hap) need?

Their pH requirements do not overlap. Altum Angel prefers 4.5–6.5, while Venustus Cichlid (Giraffe Hap) needs 7.8–8.6. This makes them incompatible in the same water chemistry.

How do I manage Altum Angel's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Altum Angel 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 7, 2026
Last updated
May 7, 2026
Issues or corrections?
Contact the editorial team

Related Comparisons

Altum Angel & Aequidens diadema (Diadem Cichlid)

·

Possible with Caution
Altum Angel: PeacefulAequidens diadema (Diadem Cichlid): Peaceful

Altum Angel & Aequidens sp. Atabapo

·

Possible with Caution
Altum Angel: PeacefulAequidens sp. Atabapo: Peaceful

Altum Angel & Apistogramma Broad-banded

·

Possible with Caution
Altum Angel: PeacefulApistogramma Broad-banded: Peaceful

Altum Angel & Apistogramma macmasteri

·

Possible with Caution
Altum Angel: PeacefulApistogramma macmasteri: Peaceful

Altum Angel & Apistogramma Mamoré

·

Possible with Caution
Altum Angel: PeacefulApistogramma Mamoré: Peaceful

Altum Angel & Apistogramma Mouthbrooder (Maulbrüter)

·

Possible with Caution
Altum Angel: PeacefulApistogramma Mouthbrooder (Maulbrüter): Peaceful

Venustus Cichlid (Giraffe Hap) & Afra Cichlid

·

Possible with Caution
Venustus Cichlid (Giraffe Hap): PeacefulAfra Cichlid: Peaceful

Venustus Cichlid (Giraffe Hap) & African Jewel Cichlid

·

Not Recommended
Venustus Cichlid (Giraffe Hap): PeacefulAfrican Jewel Cichlid: Peaceful

Venustus Cichlid (Giraffe Hap) & Altolamprologus Compressiceps

·

Possible with Caution
Venustus Cichlid (Giraffe Hap): PeacefulAltolamprologus Compressiceps: Peaceful

Venustus Cichlid (Giraffe Hap) & Auratus Cichlid (Mbuna)

·

Possible with Caution
Venustus Cichlid (Giraffe Hap): PeacefulAuratus Cichlid (Mbuna): Peaceful

Venustus Cichlid (Giraffe Hap) & Aurora Yellow Mbuna

·

Possible with Caution
Venustus Cichlid (Giraffe Hap): PeacefulAurora Yellow Mbuna: Peaceful

Venustus Cichlid (Giraffe Hap) & Black Diamond Cichlid

·

Possible with Caution
Venustus Cichlid (Giraffe Hap): PeacefulBlack Diamond Cichlid: Peaceful