Can Blind Cave Tetra and Blood Parrot Cichlid Live Together?

🟡Possible with Caution

Keeping Blind Cave Tetra and Blood Parrot Cichlid together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 240 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Blind Cave Tetra

Astyanax mexicanus

Blood Parrot Cichlid

Hybrid cichlid (Blood Parrot)

🐠Family Group
Blind Cave Tetra
Characins
Blood Parrot Cichlid
Cichlids - Central American
Temperament
Blind Cave Tetra
Mostly Peaceful (4/10)
Blood Parrot Cichlid
Semi-Aggressive (6/10)
Temperature
✓ Compatible
Blind Cave Tetra
20–25°C
Blood Parrot Cichlid
24–28°C
pH Range
✓ Compatible
Blind Cave Tetra
6.5–8
Blood Parrot Cichlid
6.5–8
Hardness (dGH)
✓ Compatible
Blind Cave Tetra
8–20
Blood Parrot Cichlid
8–20
Water Type
✓ Compatible
Blind Cave Tetra
Freshwater Only
Blood Parrot Cichlid
Freshwater Only
Flow Preference
✓ Compatible
Blind Cave Tetra
Moderate
Blood Parrot Cichlid
Moderate
Min Tank Volume
Combined: 240 L
Blind Cave Tetra
110 L
Blood Parrot Cichlid
200 L
Swimming Level
Shared: 2 zones
Blind Cave Tetra
MiddleBottom
Blood Parrot Cichlid
MiddleBottom
🏷️Behavior Tags
Blind Cave Tetra
Hyperactive / Fast SwimmerFin NipperAggressive Eater (Starves shy fish)
Blood Parrot Cichlid
Territorial (Defends specific area)Digger (Disturbs Substrate)Hyperactive / Fast Swimmer

Behaviour & Temperament

Blind Cave Tetra is a generally mild-mannered species (4/10), while Blood Parrot Cichlid is moderately assertive (6/10). This modest difference means Blood Parrot Cichlid may occasionally assert dominance over Blind Cave Tetra.

Blind Cave Tetra and Blood Parrot 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.

To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Blind Cave Tetra and Blood Parrot Cichlid to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations. Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.

Water Parameters

The safe temperature window for both species falls between 24°C and 25°C. Aim for the midpoint of this range (around 24.5°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 8–20 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Blind Cave Tetra and Blood Parrot Cichlid together, plan for an aquarium of at least 240 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Smooth Gravel (Sensitive Barbels), Sand (Sifters). 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 Blind Cave Tetra and Blood Parrot Cichlid live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 240 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Blind Cave Tetra and Blood Parrot Cichlid need?

A minimum of 240 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 Blind Cave Tetra and Blood Parrot Cichlid together?

Keep the aquarium between 24°C and 25°C. A target of around 24.5°C sits comfortably within both species' preferred ranges.

Are Blind Cave Tetra or Blood Parrot Cichlid aggressive?

Blind Cave Tetra is generally mild-mannered (4/10) and Blood Parrot Cichlid is moderately assertive (6/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Blind Cave Tetra and Blood Parrot Cichlid need?

Both species overlap in the 6.5–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Blind Cave Tetra nip Blood Parrot Cichlid's fins?

Blind Cave Tetra is a known fin nipper. If Blood Parrot Cichlid has long or flowing fins, there is a real risk of fin damage. Keeping Blind Cave Tetra in a larger group can help redirect nipping behaviour toward conspecifics.

How do I manage Blood Parrot Cichlid's territorial behaviour?

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


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