Can Red Peacock (Ruby Red) and Zebra Pleco (L046) Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 11, 2026
Not Recommended

Red Peacock (Ruby Red) and Zebra Pleco (L046) are not recommended as tank mates due to conflicting pH requirements. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Red Peacock (Ruby Red)

Aulonocara sp. 'Rubescens'

Zebra Pleco (L046)

Hypancistrus zebra

🐠Family Group
Red Peacock (Ruby Red)
Cichlids - African
Zebra Pleco (L046)
Catfish
Temperament
Red Peacock (Ruby Red)
Semi-Aggressive (6/10)
Zebra Pleco (L046)
Mostly Peaceful (3/10)
Temperature
✓ Compatible
Red Peacock (Ruby Red)
24–28°C
Zebra Pleco (L046)
27–31°C
pH Range
✗ No overlap
Red Peacock (Ruby Red)
7.8–8.6
Zebra Pleco (L046)
6–7.5
Hardness (dGH)
✓ Compatible
Red Peacock (Ruby Red)
10–25
Zebra Pleco (L046)
2–12
Water Type
✓ Compatible
Red Peacock (Ruby Red)
Freshwater Only
Zebra Pleco (L046)
Freshwater Only
Flow Preference
✓ Compatible
Red Peacock (Ruby Red)
Moderate
Zebra Pleco (L046)
High
Min Tank Volume
Combined: 208 L
Red Peacock (Ruby Red)
208 L
Zebra Pleco (L046)
75 L
Swimming Level
Shared: 1 zone
Red Peacock (Ruby Red)
MiddleBottom
Zebra Pleco (L046)
Bottom
🏷️Behavior Tags
Red Peacock (Ruby Red)
Digger (Disturbs Substrate)Fry PredatorTerritorial (Defends specific area)Aggressive to same species/look-alikesHyperactive / Fast Swimmer
Zebra Pleco (L046)
Shy / Slow Moving (Easily Stressed)NocturnalTerritorial (Defends specific area)
Stocking calculator

Can your tank handle Red Peacock (Ruby Red) and Zebra Pleco (L046)?

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.

Red Peacock (Ruby Red)
Zebra Pleco (L046)
Test both in my tank

Behaviour & Temperament

Red Peacock (Ruby Red) is a moderately assertive species (6/10), while Zebra Pleco (L046) is generally mild-mannered (3/10). This modest difference means Red Peacock (Ruby Red) may occasionally assert dominance over Zebra Pleco (L046).

Red Peacock (Ruby Red) and Zebra Pleco (L046) both frequent the 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: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Two territorial species may clash over territory, especially in smaller tanks.

Worth noting: Zebra Pleco (L046) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

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 Red Peacock (Ruby Red) (7.8–8.6) and Zebra Pleco (L046) (6–7.5) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Red Peacock (Ruby Red) and Zebra Pleco (L046) 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), 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.

Why This Pairing Usually Fails in Practice

Red Peacock (Ruby Red) and Zebra Pleco (L046) 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 Red Peacock (Ruby Red) and Zebra Pleco (L046).

Show 5 more tank sizes

Frequently Asked Questions

Can Red Peacock (Ruby Red) and Zebra Pleco (L046) live together?

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

What size tank do Red Peacock (Ruby Red) and Zebra Pleco (L046) 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 Red Peacock (Ruby Red) and Zebra Pleco (L046) 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 Red Peacock (Ruby Red) or Zebra Pleco (L046) aggressive?

Red Peacock (Ruby Red) is moderately assertive (6/10) and Zebra Pleco (L046) is generally mild-mannered (3/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Red Peacock (Ruby Red) and Zebra Pleco (L046) need?

Their pH requirements do not overlap. Red Peacock (Ruby Red) prefers 7.8–8.6, while Zebra Pleco (L046) needs 6–7.5. This makes them incompatible in the same water chemistry.

How do I manage Red Peacock (Ruby Red)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Red Peacock (Ruby Red) 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.

Does Zebra Pleco (L046) being nocturnal affect compatibility?

Zebra Pleco (L046) is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Zebra Pleco (L046) during evening hours.

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

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