Can Blue Dolphin (Hap) and Bolivian Ram Live Together?

🟢Ideal Tank Mates

Yes, Blue Dolphin (Hap) and Bolivian Ram are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 570 litres is recommended.


At a Glance

Blue Dolphin (Hap)

Cyrtocara moorii

Bolivian Ram

Mikrogeophagus altispinosus

🐠Family Group
Blue Dolphin (Hap)
Cichlids - African
Bolivian Ram
Cichlids - South American
Temperament
Blue Dolphin (Hap)
Semi-Aggressive (5/10)
Bolivian Ram
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Blue Dolphin (Hap)
24–28°C
Bolivian Ram
23–28°C
pH Range
✓ Compatible
Blue Dolphin (Hap)
7.5–8.6
Bolivian Ram
6–7.5
Hardness (dGH)
✓ Compatible
Blue Dolphin (Hap)
10–25
Bolivian Ram
2–10
Water Type
✓ Compatible
Blue Dolphin (Hap)
Freshwater Only
Bolivian Ram
Freshwater Only
Flow Preference
✓ Compatible
Blue Dolphin (Hap)
Moderate
Bolivian Ram
Low
Min Tank Volume
Combined: 570 L
Blue Dolphin (Hap)
475 L
Bolivian Ram
75 L
Swimming Level
Shared: 2 zones
Blue Dolphin (Hap)
MiddleBottom
Bolivian Ram
BottomMiddle
🏷️Behavior Tags
Blue Dolphin (Hap)
Digger (Disturbs Substrate)Hyperactive / Fast SwimmerAggressive to same species/look-alikes
Bolivian Ram
Digger (Disturbs Substrate)Territorial (Defends specific area)

Behaviour & Temperament

Blue Dolphin (Hap) is a moderately assertive species (5/10), while Bolivian Ram is generally mild-mannered (4/10). This modest difference means Blue Dolphin (Hap) may occasionally assert dominance over Bolivian Ram.

Blue Dolphin (Hap) and Bolivian Ram 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.

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.

Both fish can tolerate a pH between 7.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 10–10 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Blue Dolphin (Hap) and Bolivian Ram together, plan for an aquarium of at least 570 litres with a minimum length of 150 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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.

Find the right tank equipment

Browse tanks, décor, and equipment suited for this setup.

Frequently Asked Questions

Can Blue Dolphin (Hap) and Bolivian Ram live together?

Yes. Blue Dolphin (Hap) and Bolivian Ram are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Blue Dolphin (Hap) and Bolivian Ram need?

A minimum of 570 litres (tank length at least 150 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 Blue Dolphin (Hap) and Bolivian Ram 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 Blue Dolphin (Hap) or Bolivian Ram aggressive?

Blue Dolphin (Hap) is moderately assertive (5/10) and Bolivian Ram is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Blue Dolphin (Hap) and Bolivian Ram need?

Both species overlap in the 7.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Bolivian Ram's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Bolivian 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.


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