Can Loxozonus Corydoras (C079/C082) and Ruby Green Hap Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Loxozonus Corydoras (C079/C082) and Ruby Green Hap 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

Loxozonus Corydoras (C079/C082)

Corydoras loxozonus

Ruby Green Hap

Haplochromis sp. 'Ruby Green'

🐠Family Group
Loxozonus Corydoras (C079/C082)
Catfish
Ruby Green Hap
Cichlids - African
Temperament
Loxozonus Corydoras (C079/C082)
Peaceful (0/10)
Ruby Green Hap
Aggressive (7/10)
Temperature
✓ Compatible
Loxozonus Corydoras (C079/C082)
22–26°C
Ruby Green Hap
24–28°C
pH Range
✗ No overlap
Loxozonus Corydoras (C079/C082)
6–7.2
Ruby Green Hap
7.5–8.6
Hardness (dGH)
✓ Compatible
Loxozonus Corydoras (C079/C082)
2–12
Ruby Green Hap
10–20
Water Type
✓ Compatible
Loxozonus Corydoras (C079/C082)
Freshwater Only
Ruby Green Hap
Freshwater Only
Flow Preference
✓ Compatible
Loxozonus Corydoras (C079/C082)
Low
Ruby Green Hap
Moderate
Min Tank Volume
Combined: 195 L
Loxozonus Corydoras (C079/C082)
60 L
Ruby Green Hap
150 L
Swimming Level
Shared: 1 zone
Loxozonus Corydoras (C079/C082)
Bottom
Ruby Green Hap
MiddleBottom
🏷️Behavior Tags
Loxozonus Corydoras (C079/C082)
Hyperactive / Fast Swimmer
Ruby Green Hap
Aggressive to same species/look-alikesTerritorial (Defends specific area)Hyperactive / Fast SwimmerDigger (Disturbs Substrate)Fry Predator
Stocking calculator

Can your tank handle Loxozonus Corydoras (C079/C082) and Ruby Green Hap?

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.

Loxozonus Corydoras (C079/C082)
Ruby Green Hap
Test both in my tank

Behaviour & Temperament

Loxozonus Corydoras (C079/C082) is a peaceful species (0/10), while Ruby Green Hap is semi-aggressive (7/10). This notable difference means Ruby Green Hap may occasionally assert dominance over Loxozonus Corydoras (C079/C082).

Large aggression gap (7 points) between Loxozonus Corydoras (C079/C082) and Ruby Green Hap increases stress risk for the more peaceful fish.

Loxozonus Corydoras (C079/C082) and Ruby Green Hap 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 26°C. Aim for the midpoint of this range (around 25.0°C) for optimal comfort.

The pH requirements of Loxozonus Corydoras (C079/C082) (6–7.2) and Ruby Green Hap (7.5–8.6) 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 Loxozonus Corydoras (C079/C082) and Ruby Green Hap together, plan for an aquarium of at least 195 litres with a minimum length of 90 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), Leaf Litter/Blackwater, Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Why This Pairing Usually Fails in Practice

Loxozonus Corydoras (C079/C082) and Ruby Green Hap 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 Loxozonus Corydoras (C079/C082) and Ruby Green Hap.

Show 6 more tank sizes

Frequently Asked Questions

Can Loxozonus Corydoras (C079/C082) and Ruby Green Hap live together?

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

What size tank do Loxozonus Corydoras (C079/C082) and Ruby Green Hap need?

A minimum of 195 litres (tank length at least 90 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 Loxozonus Corydoras (C079/C082) and Ruby Green Hap together?

Keep the aquarium between 24°C and 26°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Loxozonus Corydoras (C079/C082) or Ruby Green Hap aggressive?

Loxozonus Corydoras (C079/C082) is peaceful (0/10) and Ruby Green Hap 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 Loxozonus Corydoras (C079/C082) and Ruby Green Hap need?

Their pH requirements do not overlap. Loxozonus Corydoras (C079/C082) prefers 6–7.2, while Ruby Green Hap needs 7.5–8.6. This makes them incompatible in the same water chemistry.

How do I manage Ruby Green Hap's territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Ruby Green Hap 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 6, 2026
Last updated
May 6, 2026
Issues or corrections?
Contact the editorial team

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