Can Lacerda Cory C015 and Pearly Ocellatus Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 7, 2026
Not Recommended

Lacerda Cory C015 and Pearly Ocellatus 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

Lacerda Cory C015

Scleromystax lacerdai

Pearly Ocellatus

Neolamprologus stappersi

🐠Family Group
Lacerda Cory C015
Catfish
Pearly Ocellatus
Cichlids - African
Temperament
Lacerda Cory C015
Peaceful (2/10)
Pearly Ocellatus
Aggressive (7/10)
Temperature
✓ Compatible
Lacerda Cory C015
20–25°C
Pearly Ocellatus
24–27°C
pH Range
✗ No overlap
Lacerda Cory C015
6–7.5
Pearly Ocellatus
8–9
Hardness (dGH)
✓ Compatible
Lacerda Cory C015
2–15
Pearly Ocellatus
10–25
Water Type
✓ Compatible
Lacerda Cory C015
Freshwater Only
Pearly Ocellatus
Freshwater Only
Flow Preference
✓ Compatible
Lacerda Cory C015
Moderate
Pearly Ocellatus
Low
Min Tank Volume
Combined: 118 L
Lacerda Cory C015
60 L
Pearly Ocellatus
38 L
Swimming Level
Shared: 1 zone
Lacerda Cory C015
Bottom
Pearly Ocellatus
Bottom
🏷️Behavior Tags
Lacerda Cory C015
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)
Pearly Ocellatus
Territorial (Defends specific area)Digger (Disturbs Substrate)Aggressive to same species/look-alikes
Stocking calculator

Can your tank handle Lacerda Cory C015 and Pearly Ocellatus?

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.

Lacerda Cory C015
Pearly Ocellatus
Test both in my tank

Behaviour & Temperament

Lacerda Cory C015 is a peaceful species (2/10), while Pearly Ocellatus is semi-aggressive (7/10). This notable difference means Pearly Ocellatus may occasionally assert dominance over Lacerda Cory C015.

Lacerda Cory C015 and Pearly Ocellatus 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.

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.

The pH requirements of Lacerda Cory C015 (6–7.5) and Pearly Ocellatus (8–9) do not overlap, making it impossible to satisfy both species simultaneously.

For general hardness, the shared comfort zone is 10–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Lacerda Cory C015 and Pearly Ocellatus together, plan for an aquarium of at least 118 litres with a minimum length of 60 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), Leaf Litter/Blackwater, Shells (Breeding/Hiding). 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

Lacerda Cory C015 and Pearly Ocellatus 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 Lacerda Cory C015 and Pearly Ocellatus.

Show 11 more tank sizes

Frequently Asked Questions

Can Lacerda Cory C015 and Pearly Ocellatus live together?

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

What size tank do Lacerda Cory C015 and Pearly Ocellatus need?

A minimum of 118 litres (tank length at least 60 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 Lacerda Cory C015 and Pearly Ocellatus 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 Lacerda Cory C015 or Pearly Ocellatus aggressive?

Lacerda Cory C015 is peaceful (2/10) and Pearly Ocellatus is semi-aggressive (7/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.

What pH do Lacerda Cory C015 and Pearly Ocellatus need?

Their pH requirements do not overlap. Lacerda Cory C015 prefers 6–7.5, while Pearly Ocellatus needs 8–9. This makes them incompatible in the same water chemistry.

How do I manage Pearly Ocellatus's territorial behaviour?

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