Can Honey Blue Eye and Petricola Catfish Live Together?
Honey Blue Eye and Petricola Catfish are not recommended as tank mates due to conflicting pH requirements and incompatible hardness ranges. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.
At a Glance
Can your tank handle Honey Blue Eye and Petricola Catfish?
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.
Behaviour & Temperament
Both Honey Blue Eye and Petricola Catfish are peaceful species with an aggression score of 2/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.
In terms of spatial distribution, Honey Blue Eye prefers the Top (Surface) and Middle (Open Water) zones, whereas Petricola Catfish occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.
Additional behavioural considerations to keep in mind: Shrimp eaters may also prey on very small nano fish.
Worth noting: Petricola Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Honey Blue Eye is a known jumper, so a tight-fitting lid is essential.
Water Parameters
The safe temperature window for both species falls between 24°C and 28°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.
The pH requirements of Honey Blue Eye (4.5–7) and Petricola Catfish (7.5–9) do not overlap, making it impossible to satisfy both species simultaneously.
Hardness requirements are incompatible: Honey Blue Eye needs 1–8 dGH while Petricola Catfish requires 10–25 dGH.
Tank Setup
To house Honey Blue Eye and Petricola Catfish together, plan for an aquarium of at least 110 litres with a minimum length of 80 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: Leaf Litter/Blackwater, Plants - Densely covered, Driftwood (Digestion/Hiding), Sand (Sifters), Smooth Gravel (Sensitive Barbels). 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
Honey Blue Eye and Petricola Catfish 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 Honey Blue Eye and Petricola Catfish.
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
Show 12 more tank sizes
Diet & Feeding
Feeding time deserves special attention with this pairing. Petricola Catfish is a known shrimp eater and may prey on small invertebrates or nano fish like Honey Blue Eye.
Frequently Asked Questions
Can Honey Blue Eye and Petricola Catfish live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Honey Blue Eye and Petricola Catfish need?
A minimum of 110 litres (tank length at least 80 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 Honey Blue Eye and Petricola Catfish together?
Keep the aquarium between 24°C and 28°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.
Are Honey Blue Eye or Petricola Catfish aggressive?
Honey Blue Eye is peaceful (2/10) and Petricola Catfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Honey Blue Eye and Petricola Catfish need?
Their pH requirements do not overlap. Honey Blue Eye prefers 4.5–7, while Petricola Catfish needs 7.5–9. This makes them incompatible in the same water chemistry.
Does Petricola Catfish being nocturnal affect compatibility?
Petricola Catfish 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 Petricola Catfish during evening hours.
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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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