Can Licorice Gourami and Red Dwarf Rasbora Live Together?
Licorice Gourami and Red Dwarf Rasbora 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 Licorice Gourami and Red Dwarf Rasbora?
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
Licorice Gourami is a peaceful species (2/10), while Red Dwarf Rasbora is peaceful (1/10). This modest difference means Licorice Gourami may occasionally assert dominance over Red Dwarf Rasbora.
Licorice Gourami and Red Dwarf Rasbora both frequent the Middle (Open Water) 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.
Water Parameters
The safe temperature window for both species falls between 22°C and 26°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.
The pH requirements of Licorice Gourami (3–6) and Red Dwarf Rasbora (7–8.5) do not overlap, making it impossible to satisfy both species simultaneously.
Hardness requirements are incompatible: Licorice Gourami needs 0–4 dGH while Red Dwarf Rasbora requires 8–20 dGH.
Tank Setup
To house Licorice Gourami and Red Dwarf Rasbora together, plan for an aquarium of at least 40 litres with a minimum length of 45 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). 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
Licorice Gourami and Red Dwarf Rasbora 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 Licorice Gourami and Red Dwarf Rasbora.
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
36 Gallon Bowfront
Show 21 more tank sizes
Frequently Asked Questions
Can Licorice Gourami and Red Dwarf Rasbora live together?
No. This combination is not recommended. Key incompatibilities — such as critical behavioural conflicts — make cohabitation unsafe.
What size tank do Licorice Gourami and Red Dwarf Rasbora need?
A minimum of 40 litres (tank length at least 45 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 Licorice Gourami and Red Dwarf Rasbora together?
Keep the aquarium between 22°C and 26°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.
Are Licorice Gourami or Red Dwarf Rasbora aggressive?
Licorice Gourami is peaceful (2/10) and Red Dwarf Rasbora is peaceful (1/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Licorice Gourami and Red Dwarf Rasbora need?
Their pH requirements do not overlap. Licorice Gourami prefers 3–6, while Red Dwarf Rasbora needs 7–8.5. This makes them incompatible in the same water chemistry.
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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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