Easy
Microrasbora kubotai - Tropical Fish for Sale UK
22–26°C · pH 6–7.5 · 30L
£4.99
A striking, hardy labyrinth fish from Sri Lanka with bold personality and elegant finnage, ideal for a spacious species tank or carefully chosen commu.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The fish you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the live fish may show subtle colour or marking differences.
Belontia signata
Not home? Message us and we'll delay delivery.
A striking, hardy labyrinth fish from Sri Lanka with bold personality and elegant finnage, ideal for a spacious species tank or carefully chosen commu.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The fish you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the live fish may show subtle colour or marking differences.
Maintain these water conditions for optimal health and vibrant colors
The Comb-Tail Paradise Fish (Belontia signata), also known as the Ceylonese Combtail, is a striking Sri Lankan labyrinth fish celebrated for its comb-like fins and bold personality. Endemic to shallow, slow-flowing streams in Sri Lanka, this semi-aggressive species thrives in spacious aquariums with strong filtration and robust tank mates. Available for sale UK-wide, the Comb-Tail is an excellent choice for aquarists seeking a unique, hardy centerpiece fish with moderate care requirements.
Belontia signata displays a robust, deep-bodied profile with iridescent coloration that shifts between olive-green, bronze, and red-brown depending on mood and lighting. Males are more colorful than females, with extended, comb-like fin rays and intensified hues during courtship and territorial displays. The species has large, expressive eyes, a slightly upturned mouth, and distinctive comb-like extensions on the caudal and dorsal fins.
The Comb-Tail Paradise Fish is endemic to shallow, slow-flowing clear-water streams in Sri Lanka. These habitats feature soft to moderately hard water, abundant vegetation, submerged wood, and stable tropical temperatures. The fish shelter among plants and roots, establishing territories and hunting for insects, larvae, and small invertebrates.
A minimum 250-litre aquarium is essential for the Comb-Tail Paradise Fish. Provide plenty of cover using driftwood, caves, smooth rocks, and hardy plants such as Anubias, Java Fern, or Vallisneria. Gentle filtration maintains water quality without creating excessive current, which stresses this species. A secure lid is essential, as labyrinth fish can breathe atmospheric air and may attempt to jump.
Maintain neutral to slightly acidic water with pH 6.5-7.5 and temperatures between 24-30°C. General hardness (GH) of 5-12 dGH is ideal. The Comb-Tail Paradise Fish is adaptable but performs best in stable, well-filtered water with excellent quality. Perform weekly water changes of 20-25% to control nitrate and maintain stable parameters. Although it can tolerate low oxygen due to its labyrinth organ, it still does best in clean, well-oxygenated water.
Belontia signata is an omnivore with a preference for meaty foods. Offer quality pellets or granules as a staple, supplemented with frozen and live foods such as bloodworms, brine shrimp, daphnia, and insect larvae. Limited vegetable matter or algae-based foods provide balanced nutrition. Feed once or twice daily in portions that are consumed within a few minutes.
This species can be territorial and may damage tankmates with its mouth and fins. Provide plenty of cover and avoid housing with other combtails or similarly shaped fish.
The Comb-Tail Paradise Fish is a semi-aggressive, territorial labyrinth fish that establishes and defends territories within the aquarium. Males are particularly territorial, especially during breeding, and may spar with other males or similarly colored species. This species is generally peaceful toward mid-water or surface fish but can be aggressive toward conspecifics or other bottom dwellers.
Suitable tank mates include robust, similarly sized peaceful fish such as large rasboras, medium-sized catfish, and non-aggressive bottom dwellers of similar size. Avoid small fish, shrimp, slow-moving long-finned fish, fin-nippers, and other combtails. The Comb-Tail Paradise Fish coexists well with similarly sized, active fish in spacious, well-structured aquariums.
Belontia signata is a bubble-nesting labyrinth fish. Breeding is possible in a quiet, well-planted tank with soft to moderately hard water and a calm pair. Males build bubble nests at the surface and court females with elaborate displays. After spawning, the male guards the nest and eggs. Remove the female after spawning to prevent aggression. Fry are tiny and require very small foods such as infusoria or liquid fry food initially, graduating to baby brine shrimp as they grow.
At Tropical Fish Co, we specialize in rare and unique labyrinth fish sourced from trusted suppliers and quarantined for your peace of mind. We provide expert guidance on tank setup, water chemistry, and compatible stocking to help you create a thriving semi-aggressive aquarium. With fast, reliable delivery across the UK and a commitment to quality fishkeeping, Tropical Fish Co is your premier destination for striking and engaging freshwater fish.
Dispatched Tue or Wed, delivered Wed or Thu — every order tracked and insured.
22–26°C · pH 6–7.5 · 30L
24–28°C · pH 7.5–8.5 · 150L
24–28°C · pH 7.5–8.5 · 200L
18–25°C · pH 6–8 · 100L
24–27°C · pH 7.5–8.8 · 150L
22–26°C · pH 6–7.5 · 60L
24–28°C · pH 5.5–7 · 60L
18–28°C · pH 6.5–8 · 20L
24–28°C · pH 7.5–8.5 · 40L
24–28°C · pH 7.5–8.5 · 400L
22–26°C · pH 6–7.5 · 150L
22–28°C · pH 7–8.5 · 10L
23–27°C · pH 5.5–7.5 · 80L
24–27°C · pH 7.5–9 · 250L