Can Chocolate Gourami and Dickfeld's Julie Live Together?
Chocolate Gourami and Dickfeld's Julie 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 Chocolate Gourami and Dickfeld's Julie?
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
Chocolate Gourami is a peaceful species (2/10), while Dickfeld's Julie is moderately assertive (6/10). This notable difference means Dickfeld's Julie may occasionally assert dominance over Chocolate Gourami.
Chocolate Gourami and Dickfeld's Julie both frequent the Middle (Open Water) and 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 25°C and 27°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.
The pH requirements of Chocolate Gourami (4–6.5) and Dickfeld's Julie (8–9) do not overlap, making it impossible to satisfy both species simultaneously.
Hardness requirements are incompatible: Chocolate Gourami needs 0–5 dGH while Dickfeld's Julie requires 10–25 dGH.
Tank Setup
To house Chocolate Gourami and Dickfeld's Julie together, plan for an aquarium of at least 75 litres with a minimum length of 75 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, Plants - Floating, Driftwood (Digestion/Hiding), Sand (Sifters). 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
Chocolate Gourami and Dickfeld's Julie 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 Chocolate Gourami and Dickfeld's Julie.
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
36 Gallon Bowfront
40 Gallon Breeder
55 Gallon Standard
Show 15 more tank sizes
Frequently Asked Questions
Can Chocolate Gourami and Dickfeld's Julie live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Chocolate Gourami and Dickfeld's Julie need?
A minimum of 75 litres (tank length at least 75 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 Chocolate Gourami and Dickfeld's Julie together?
Keep the aquarium between 25°C and 27°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.
Are Chocolate Gourami or Dickfeld's Julie aggressive?
Chocolate Gourami is peaceful (2/10) and Dickfeld's Julie is moderately assertive (6/10). The gap in aggression levels means the calmer fish may experience stress from the more assertive one.
What pH do Chocolate Gourami and Dickfeld's Julie need?
Their pH requirements do not overlap. Chocolate Gourami prefers 4–6.5, while Dickfeld's Julie needs 8–9. This makes them incompatible in the same water chemistry.
How do I manage Dickfeld's Julie's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Dickfeld's Julie 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.
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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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