Red Empress

Protomelas taeniolatus

Cichlids - African
Reviewed by Guidarium Editorial DeskUpdated May 11, 2026

A stunning and relatively peaceful Lake Malawi Haplochromine cichlid. Males develop breathtaking red and blue coloration, while females remain a camouflaged silvery-brown. Though considered a 'gentle Hap' compared to Mbuna, they are still large, active African Cichlids that require hard, alkaline water, plenty of swimming space, and rockwork.

Red Empress At a Glance

Adult Size15 cm
Body ShapeFusiform
Growth RateModerate
TemperamentSemi-Aggressive
Water TypeFreshwater Only
Flow PreferenceModerate
Waste OutputHigh
StockingSolo or group

Red Empress Tank Requirements

Minimum Volume280 L
Minimum Length120 cm
FlowModerate
Water TypeFreshwater Only
Must-Haves in the Tank
Sand (Sifters)Smooth Gravel (Sensitive Barbels)
Stocking calculator

Will Red Empress fit in your tank?

Care guides tell you what Red Empress needs, the next question is whether your tank can safely provide it. Test Red Empress against your tank size, maintenance needs, and the fish you already keep before you buy.

Red Empress
Test in my tank

Red Empress Water Parameters

Temperature2428°C
pH7.88.6
Hardness1025 dGH

Red Empress Temperament & Compatibility

Aggression LevelSemi-Aggressive
6/10
Where They Swim
Surface
Mid-level
Bottom
Stocking Guidelines
Keep at Least1 (solo is fine)
Max per TankNo limit
Can Live Alone?Yes
Behavior Traits
Territorial (Defends specific area)Aggressive to same species/look-alikesHyperactive / Fast SwimmerDigger (Disturbs Substrate)

Red Empress Varieties

Each variety inherits the species defaults above. Only differences are highlighted.

Male

Adult males display the famous red body and metallic blue head. Best kept as a solitary 'show male' in a mixed all-male Hap/Peacock setup, or with a harem of females. Highly intolerant of other male Red Empresses.

Differs in 2 traits from base species

Also known as: Show Male, Adult Male

TemperamentSemi-Aggressive
StockingSolo only

Female

Silvery body with distinct dark horizontal and vertical lines. Much more peaceful than males. If kept with a male, keep a strict ratio of at least 3 females per 1 male to disperse his breeding aggression.

Differs in 2 traits from base species

Also known as: Harem, Breeder Female

Adult Size13 cm
TemperamentMostly Peaceful

Juvenile / Unsexed

Sold small before sexual dimorphism is evident. All juveniles show the silver-brown female pattern. Males will begin coloring up around 7-9cm.

Differs in 6 traits from base species

Also known as: Baby, Unsexed

Adult Size5 cm
TemperamentMostly Peaceful
Min Volume150 L
Min Length90 cm
Growth RateFast
Behavior Traits
Hyperactive / Fast SwimmerDigger (Disturbs Substrate)

Red Empress Care Guide Summary

The Red Empress, scientifically known as Protomelas taeniolatus, belongs to the Cichlids - African family group. Adults reach a maximum size of approximately 15 cm and have a fusiform body shape with a moderate growth rate. Classified as semi-aggressive, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a high level of biological waste.

To thrive, the Red Empress requires a freshwater only aquarium with a minimum volume of 280 litres and a tank length of at least 120 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 7.88.6 and a general hardness of 1025 dGH. A moderate water flow is preferred.

The Red Empress is a rewarding species to keep, provided its core environmental needs are met. This species is available in 3 varieties: Male, Female, and Juvenile / Unsexed. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.

Red Empress Habitat Setup

When setting up an aquarium for the Red Empress, a moderate water flow best suits their natural preferences. Because this species occupies the mid-level and bottom zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour and smooth gravel or rounded substrate to protect their sensitive barbels. Keepers should note that expect substrate disturbance, so lightweight décor should be secured.

Red Empress Compatibility Notes

Classified as semi-aggressive, the Red Empress is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, conspecific aggression can be intense, especially in smaller tanks, territorial behaviour may cause issues if hiding spots or floor space are limited, and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the mid-level and bottom zones can help reduce competition and territorial overlap.

Who Red Empress Is Actually For

Red Empress is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide someone who understands its individual space requirements. It makes the most sense for a hobbyist who will actually build around its needs, especially sand.

The most common mistake is treating Red Empress like any other community fish and skipping the soft sand it needs to forage safely. Another frequent problem is forcing it into an over-busy community when it would do better with more room or more deliberate tankmate choices.

Red Empress Recommended Tank Sizes

Standard aquarium sizes that meet the minimum volume and length requirements for Red Empress.

Show 1 more tank size

Frequently Asked Questions About Red Empress

How big does Red Empress get?

Red Empress (Protomelas taeniolatus) typically reaches a maximum adult size of approximately 15 cm. They have a fusiform body shape and a moderate growth rate.

What tank size does Red Empress need?

A minimum aquarium volume of 280 litres and a tank length of at least 120 cm are recommended for Red Empress. This ensures enough swimming space and helps maintain stable water conditions.

What water parameters does Red Empress need?

Red Empress thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 7.8 and 8.6, and a general hardness of 10–25 dGH. A moderate water flow is preferred.

Is Red Empress peaceful or aggressive?

Red Empress is classified as semi-aggressive with an aggression score of 6 out of 10. They can work in community setups but may clash with certain tankmates.

Can Red Empress live alone?

Yes, Red Empress can be kept singly or in a group. They are flexible and adapt well to both setups.

Does Red Empress have any special tank requirements?

Yes. Red Empress benefits from sand (sifters) and smooth gravel (sensitive barbels) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.

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

Fish Similar to Red Empress

Taiwan Reef Cichlid

Protomelas sp. "Steveni Taiwan"

Cichlids - African
17 cm Semi-Aggressive

A striking Lake Malawi Haplochromis (Hap) known for the breathtaking color transformation of mature males. Originating from the Taiwan Reef area in Africa (despite the misleading name), they are active swimmers that require hard, alkaline water, a sandy substrate for digging, and plenty of rockwork. They are primarily herbivorous in the wild and prone to 'Malawi Bloat' if fed too much heavy protein; a diet rich in spirulina is required.

Red Zebra Cichlid (Cherry Red)

Metriaclima estherae

Cichlids - African
11 cm Aggressive

A highly popular and vibrant Mbuna cichlid from Lake Malawi. The 'Cherry Red' or Orange morph is a favorite for African Cichlid setups. They are rock-dwelling (Mbuna), highly territorial, and require a diet rich in vegetable matter (algae/spirulina) to avoid Malawi Bloat. Best kept in a harem ratio of 1 male to 3+ females.

Red Top Cobalt Cichlid

Metriaclima greshakei

Cichlids - African
13 cm Aggressive

An attractive and robust Mbuna cichlid native to the rocky shores of Lake Malawi. They are highly sexually dimorphic. Like most Mbuna, they require hard, alkaline water, intricate rockwork to establish territories, and a specialized herbivore-leaning diet to prevent digestive issues (Malawi bloat).

Azureus Cichlid

Copadichromis azureus

Cichlids - African
16 cm Semi-Aggressive

A stunning open-water 'Utaka' cichlid from Lake Malawi. Males develop a spectacular metallic blue coloration, making them popular centerpieces in African Cichlid tanks. Compared to rock-dwelling Mbuna, they are relatively peaceful open-water swimmers but still require ample swimming space and hard, alkaline water.

Electric Blue Johannii

Pseudotropheus johannii

Cichlids - African
10 cm Aggressive

An iconic Mbuna cichlid from Lake Malawi renowned for extreme sexual dimorphism. Males transform into a striking electric blue with dark navy horizontal stripes, while females and juveniles remain a vibrant yellow-orange. Like most Mbuna, they are highly aggressive, territorial, and require hard, alkaline water with extensive rockwork to form caves. They are avid diggers and will destroy most live plants.

Sulphur Crest Lithobates

Otopharynx lithobates

Cichlids - African
16 cm Semi-Aggressive

A stunning Lake Malawi Haplochromine cichlid. They are famously associated with the 'Zimbawe Rock' collection point. In the wild, they inhabit caves, and in the aquarium, they appreciate rockwork. Relatively peaceful for a Malawi cichlid, they do well in all-male Hap/Peacock displays or in species-specific harems.