Kissing Gourami Care Guide: Lip-Locking Giants

Introduction
Species Overview and Origin
Tank Setup and Water Parameters
Feeding and Diet
Behaviour and Temperament
Compatible Tank Mates
Breeding Kissing Gouramis
Common Health Issues
Frequently Asked Questions
Conclusion

Introduction

The kissing gourami is one of the most recognisable freshwater fish in the hobby, famous for its peculiar lip-locking behaviour that has charmed aquarists for generations. But behind that endearing “kiss” lies a large, sometimes challenging species that requires more space and planning than many beginners realise. This kissing gourami care guide provides a thorough overview of Helostoma temminckii, helping you make informed decisions about whether this iconic fish is right for your aquarium.

At Gensou, our aquascaping studio at 5 Everton Park, Singapore, we have kept and sold kissing gouramis for over 20 years. We know firsthand what works and what does not when it comes to housing these gentle giants. Read on for practical, experience-backed advice.

Species Overview and Origin

The kissing gourami (Helostoma temminckii) is the sole member of the family Helostomatidae. Native to Southeast Asia, it is found throughout Thailand, Indonesia, Malaysia, and parts of Indochina, inhabiting slow-moving rivers, lakes, floodplains, and even rice paddies. In many parts of its range, it is farmed as a food fish—a testament to the size it can achieve.

In the wild, kissing gouramis can grow to 30 centimetres or more. Aquarium specimens typically reach 20–25 centimetres, which still makes them one of the larger gourami species available to hobbyists. With proper care, they can live 15 to 20 years in captivity, making them a long-term commitment.

Appearance

Two colour forms dominate the aquarium trade. The wild-type is a silvery-green with faint horizontal stripes, while the far more popular pink (or “flesh-coloured”) form is a leucistic variant that has been selectively bred for generations. Both forms possess the characteristic protruding, fleshy lips lined with tiny teeth that give the species its common name. A less common dwarf or “balloon” variety also exists, though its compressed body shape raises welfare concerns.

The Labyrinth Organ

Like all gouramis, kissing gouramis possess a labyrinth organ that allows them to breathe atmospheric air directly. This adaptation enables them to survive in low-oxygen environments, including warm, stagnant waters. You will regularly see them rise to the surface to gulp air—this is perfectly normal and not a sign of oxygen deprivation.

Tank Setup and Water Parameters

The single most important factor in this kissing gourami care guide is tank size. These fish grow large and are active swimmers, so anything under 300 litres for a pair is simply too small for long-term housing.

Recommended Water Parameters

Parameter	Recommended Range
Tank Size (Minimum)	300 litres (80 gallons) for a pair
Temperature	22–28 °C (72–82 °F)
pH	6.0–8.0
General Hardness (GH)	5–20 dGH
Carbonate Hardness (KH)	3–12 dKH
Ammonia / Nitrite	0 ppm
Nitrate	Below 25 ppm
Water Flow	Gentle to moderate

Aquascaping Tips

Kissing gouramis are herbivores that will graze on soft-leaved plants, so choose your greenery carefully. Hardy species like Java fern, Anubias, and Bolbitis tend to be left alone, while delicate stem plants will be consumed. Driftwood, smooth stones, and sturdy artificial plants can fill out the aquascape without becoming expensive snacks.

Provide areas of cover using tall decorations or floating plants—kissing gouramis appreciate shaded retreats despite their bold appearance. Gentle filtration is preferred; strong currents stress these fish, which naturally inhabit calm waters. In Singapore’s warm climate, the ambient temperature usually falls within their comfort zone, but a heater remains useful for maintaining consistency, particularly in air-conditioned rooms.

Feeding and Diet

Kissing gouramis are omnivores with a strong herbivorous lean. Their protruding lips are specially adapted for scraping algae and biofilm off surfaces—a behaviour you will observe frequently in a well-established tank.

Recommended Foods

Spirulina-based flakes or pellets – Should form the core of the diet, providing essential plant-based nutrition.
Algae wafers – Supplement the diet and encourage natural grazing behaviour.
Blanched vegetables – Lettuce, spinach, zucchini, and peas are all excellent choices.
Frozen or live foods – Bloodworms, brine shrimp, and daphnia offered two to three times a week add protein variety.
High-quality omnivore pellets – A convenient balanced option for daily feeding.

Feed two to three times daily. Kissing gouramis are enthusiastic eaters that can become overweight if overfed, so monitor body condition and adjust portions accordingly. Their algae-grazing habit means they also contribute to tank cleanliness—a useful bonus in larger setups.

Behaviour and Temperament

The behaviour that gives kissing gouramis their name is not, in fact, a sign of affection. The “kissing” action—where two fish press their protruding lips together—is a form of sparring. Both males and females engage in this behaviour to establish dominance, test strength, and settle disputes over territory or food. The contests can last from a few seconds to several minutes and rarely result in injury.

General Temperament

Kissing gouramis are generally peaceful towards other species, but they can be assertive with conspecifics and other gouramis. They are slow-moving and somewhat ponderous, spending much of their time cruising the mid-water column or grazing on surfaces. However, they can become territorial as they mature, particularly in cramped conditions.

Their habit of “kissing” extends beyond their own kind—you may catch them pressing their lips against the glass, decorations, or even the sides of other fish. This is generally a grazing or exploratory behaviour, but it can irritate more sensitive tank mates.

Personality

Many keepers report that kissing gouramis develop distinct personalities over time. They learn to recognise their owners, respond to feeding cues, and can even be hand-trained to accept food from between your fingers. Their long lifespan means you will have years to build this bond.

Compatible Tank Mates

Choosing the right companions is essential in any kissing gourami care guide. Despite their size, kissing gouramis are not predatory and coexist well with appropriately chosen species.

Good Tank Mates

Species	Why They Work
Large barbs (tinfoil, denison)	Active and robust enough to hold their own
Silver dollars	Peaceful herbivores of similar size and temperament
Larger rainbowfish	Fast and colourful; occupy the upper water column
Plecos and large catfish	Bottom-dwellers that avoid territorial overlap
Clown loaches	Hardy, sociable bottom-dwellers that complement gouramis well
Peaceful medium cichlids (severums, keyholes)	Similar size and calm temperament

Species to Avoid

Other gourami species – Kissing gouramis may bully smaller gouramis like dwarfs, honeys, or pearls.
Small, delicate fish – Neon tetras, small rasboras, and guppies risk being harassed or outcompeted for food.
Aggressive cichlids – Species like Jack Dempseys or Midas cichlids will intimidate the relatively passive kissing gourami.
Long-finned species – The gourami’s lip-pressing behaviour can damage flowing fins on fish like angelfish or bettas.

Breeding Kissing Gouramis

Breeding kissing gouramis in the home aquarium is relatively uncommon due to their space requirements, but it is achievable with dedication.

Sexing

Distinguishing males from females is notoriously difficult. There are no reliable external differences in colour or fin shape. Mature females may appear slightly rounder when viewed from above, particularly when gravid, but this is the only visual cue available to most hobbyists.

Spawning Behaviour

Unlike many gourami species, kissing gouramis do not build bubble nests. Instead, they are open-water egg scatterers. Spawning is triggered by a large water change with slightly softer, warmer water (27–28 °C) and an increase in high-protein foods.

During spawning, the pair engages in an elaborate circling dance near the surface. The female releases hundreds to thousands of buoyant eggs, which float to the surface among any available vegetation. The parents show no parental care and should be removed promptly to prevent egg consumption.

Fry Care

Eggs hatch within 24–48 hours. The tiny fry are initially sustained by their yolk sacs before becoming free-swimming after another two to three days. Feed infusoria or liquid fry food at first, graduating to baby brine shrimp and finely powdered spirulina flake as they grow. Fry are extremely small and grow slowly, requiring pristine water quality maintained through gentle sponge filtration and frequent small water changes.

Common Health Issues

Kissing gouramis are reasonably hardy but can develop problems if their environment is neglected.

Ich (white spot disease) – Common in newly purchased fish or after temperature fluctuations. Treat by gradually raising temperature to 30 °C and using an appropriate medication.
Bacterial infections – Often manifest as fin rot, ulcers, or cloudy eyes. Usually linked to poor water quality; improve conditions and treat with antibacterial medication.
Internal parasites – Wild-caught or poorly quarantined fish may carry intestinal parasites. Symptoms include weight loss despite a good appetite. Treat with a broad-spectrum antiparasitic.
Obesity – A common problem in well-fed captive kissing gouramis. Reduce portions and increase the proportion of vegetable-based foods.

Prevention centres on stable water parameters, a balanced diet, and quarantining all new additions for a minimum of two weeks before introducing them to the main tank.

Frequently Asked Questions

Why do kissing gouramis “kiss” each other?

The lip-locking behaviour is a form of sparring, not affection. Both males and females use it to test each other’s strength and establish dominance. It is most common between individuals of similar size and usually resolves without injury. However, persistent lip-locking in a small tank can indicate overcrowding or inadequate territory.

How large do kissing gouramis actually get?

In home aquaria, expect adult sizes of 20–25 centimetres. Wild specimens can exceed 30 centimetres. Many hobbyists purchase juveniles at 5–8 centimetres without realising how large they will become, leading to housing problems down the line. Always plan for the adult size.

Are kissing gouramis good for beginners?

They are hardy and tolerant of a wide range of water conditions, which is beginner-friendly. However, their large adult size, long lifespan (up to 20 years), and significant tank requirements mean they are better suited to hobbyists who can commit to a large, long-term setup. A 300-litre tank is the bare minimum.

Can kissing gouramis be kept with live plants?

They will eat most soft-leaved plants. Tough, bitter species like Java fern, Anubias, and Bolbitis have the best chance of survival. If a lush planted tank is your goal, the kissing gourami is not the ideal inhabitant.

Conclusion

Kissing gouramis are fascinating, long-lived fish that bring personality and presence to any large aquarium. Their iconic lip-locking behaviour, gentle nature, and impressive size make them unforgettable additions—provided you have the space and commitment to house them properly. We hope this kissing gourami care guide has given you a clear picture of what to expect and how to succeed.

Gensou has been Singapore’s trusted aquascaping partner for over two decades. Whether you need healthy fish, expert advice on large-tank design, or a fully custom aquarium built and installed for your home or office, we are here to help. Visit us at 5 Everton Park, browse our online shop, or reach out to our team today.

Your Cart