Can Betta (Siamese Fighting Fish) and Licorice Gourami Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Betta (Siamese Fighting Fish) and Licorice Gourami are not recommended as tank mates due to 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

Betta (Siamese Fighting Fish)

Betta splendens

Licorice Gourami

Parosphromenus deissneri

🐟Family Group
Betta (Siamese Fighting Fish)
Anabantoids
Licorice Gourami
Anabantoids
Temperament
Betta (Siamese Fighting Fish)
Semi-Aggressive (5/10)
Licorice Gourami
Peaceful (2/10)
Temperature
✓ Compatible
Betta (Siamese Fighting Fish)
24–30°C
Licorice Gourami
22–28°C
pH Range
✓ Compatible
Betta (Siamese Fighting Fish)
6–8
Licorice Gourami
3–6
Hardness (dGH)
✗ No overlap
Betta (Siamese Fighting Fish)
5–20
Licorice Gourami
0–4
Water Type
✓ Compatible
Betta (Siamese Fighting Fish)
Freshwater Only
Licorice Gourami
Freshwater Only
Flow Preference
✓ Compatible
Betta (Siamese Fighting Fish)
Low
Licorice Gourami
Low
Min Tank Volume
Combined: 20 L
Betta (Siamese Fighting Fish)
19 L
Licorice Gourami
19 L
Swimming Level
Shared: 1 zone
Betta (Siamese Fighting Fish)
TopMiddle
Licorice Gourami
MiddleBottom
🏷️Behavior Tags
Betta (Siamese Fighting Fish)
Shrimp EaterFry PredatorAggressive to same species/look-alikesJumper (Lid Required)Territorial (Defends specific area)
Licorice Gourami
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Betta (Siamese Fighting Fish) and Licorice Gourami?

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.

Betta (Siamese Fighting Fish)
Licorice Gourami
Test both in my tank

Behaviour & Temperament

Betta (Siamese Fighting Fish) is a moderately assertive species (5/10), while Licorice Gourami is peaceful (2/10). This modest difference means Betta (Siamese Fighting Fish) may occasionally assert dominance over Licorice Gourami.

Betta (Siamese Fighting Fish) and Licorice Gourami 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: Shrimp eaters may also prey on very small nano fish.

Worth noting: Betta (Siamese Fighting Fish) 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.

Both fish can tolerate a pH between 6 and 6. Maintaining a stable value within this band is more important than hitting an exact number.

Hardness requirements are incompatible: Betta (Siamese Fighting Fish) needs 5–20 dGH while Licorice Gourami requires 0–4 dGH.

Tank Setup

To house Betta (Siamese Fighting Fish) and Licorice Gourami together, plan for an aquarium of at least 20 litres with a minimum length of 30 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: Plants - Densely covered, Plants - Floating, Smooth Gravel (Sensitive Barbels), Leaf Litter/Blackwater, 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

Betta (Siamese Fighting Fish) and Licorice Gourami 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 Betta (Siamese Fighting Fish) and Licorice Gourami.

Show 26 more tank sizes

Diet & Feeding

Feeding time deserves special attention with this pairing. Betta (Siamese Fighting Fish) is a known shrimp eater and may prey on small invertebrates or nano fish like Licorice Gourami.

Frequently Asked Questions

Can Betta (Siamese Fighting Fish) and Licorice Gourami live together?

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

What size tank do Betta (Siamese Fighting Fish) and Licorice Gourami need?

A minimum of 20 litres (tank length at least 30 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 Betta (Siamese Fighting Fish) and Licorice Gourami 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 Betta (Siamese Fighting Fish) or Licorice Gourami aggressive?

Betta (Siamese Fighting Fish) is moderately assertive (5/10) and Licorice Gourami is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Betta (Siamese Fighting Fish) and Licorice Gourami need?

Both species overlap in the 6–6 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

How do I manage Betta (Siamese Fighting Fish)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Betta (Siamese Fighting Fish) 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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