Can Flyspeck Hardyhead and Licorice Gourami Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Not Recommended

Flyspeck Hardyhead 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

Flyspeck Hardyhead

Craterocephalus stercusmuscarum

Licorice Gourami

Parosphromenus deissneri

🐠Family Group
Flyspeck Hardyhead
Other
Licorice Gourami
Anabantoids
Temperament
Flyspeck Hardyhead
Peaceful (1/10)
Licorice Gourami
Peaceful (2/10)
Temperature
✓ Compatible
Flyspeck Hardyhead
22–28°C
Licorice Gourami
22–28°C
pH Range
✓ Compatible
Flyspeck Hardyhead
6–8
Licorice Gourami
3–6
Hardness (dGH)
✗ No overlap
Flyspeck Hardyhead
5–15
Licorice Gourami
0–4
Water Type
✓ Compatible
Flyspeck Hardyhead
Freshwater Only
Licorice Gourami
Freshwater Only
Flow Preference
✓ Compatible
Flyspeck Hardyhead
Moderate
Licorice Gourami
Low
Min Tank Volume
Combined: 75 L
Flyspeck Hardyhead
75 L
Licorice Gourami
19 L
Swimming Level
Shared: 1 zone
Flyspeck Hardyhead
TopMiddle
Licorice Gourami
MiddleBottom
🏷️Behavior Tags
Flyspeck Hardyhead
Hyperactive / Fast SwimmerJumper (Lid Required)
Licorice Gourami
Nano / Bite-sized (Predation Risk)Shy / Slow Moving (Easily Stressed)
Stocking calculator

Can your tank handle Flyspeck Hardyhead 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.

Flyspeck Hardyhead
Licorice Gourami
Test both in my tank

Behaviour & Temperament

Flyspeck Hardyhead is a peaceful species (1/10), while Licorice Gourami is peaceful (2/10). This modest difference means Licorice Gourami may occasionally assert dominance over Flyspeck Hardyhead.

Flyspeck Hardyhead 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: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

Worth noting: Flyspeck Hardyhead is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 22°C and 28°C. Aim for the midpoint of this range (around 25.0°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: Flyspeck Hardyhead needs 5–15 dGH while Licorice Gourami requires 0–4 dGH.

Tank Setup

To house Flyspeck Hardyhead and Licorice Gourami together, plan for an aquarium of at least 75 litres with a minimum length of 60 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, Established Algae (Otocinclus), Leaf Litter/Blackwater, Plants - Floating, Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.

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

Why This Pairing Usually Fails in Practice

Flyspeck Hardyhead 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 Flyspeck Hardyhead and Licorice Gourami.

Show 17 more tank sizes

Frequently Asked Questions

Can Flyspeck Hardyhead 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 Flyspeck Hardyhead and Licorice Gourami need?

A minimum of 75 litres (tank length at least 60 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 Flyspeck Hardyhead and Licorice Gourami together?

Keep the aquarium between 22°C and 28°C. A target of around 25.0°C sits comfortably within both species' preferred ranges.

Are Flyspeck Hardyhead or Licorice Gourami aggressive?

Flyspeck Hardyhead is peaceful (1/10) and Licorice Gourami is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Flyspeck Hardyhead 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.

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?
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