
Aulonocara sp. 'Firefish' - Tropical Fish for Sale UK
24–28°C · pH 7.5–8.5 · 200L

Phallichthys amates
A hardy, peaceful Central American livebearer with attractive markings and easy breeding habits, ideal for community aquariums. Easy care, peaceful. 22-28C, pH 7.0-8.2.
Maintain these water conditions for optimal health and vibrant colors
Merry Widow (Phallichthys amates), also known as the Merry Widow Livebearer, is a hardy, peaceful Central American livebearer with attractive markings and easy breeding habits, ideal for community aquariums. Native to Central America, from Guatemala to Panama, this species is prized for its manageable size, peaceful nature, and adaptability. Now available for sale UK from Tropical Fish Co, this charming livebearer is ideal for the community aquarium enthusiast seeking an easy-to-keep, attractive species.
The Merry Widow typically reaches around 5.5 cm in total length, making it a small to medium-sized livebearer. The body is robust and deep-bodied, with a pale silver or gold base color marked with dark markings along the flanks and a distinctive dark edge on the dorsal fin. A dark stripe runs through the eye, giving the species a subtle but attractive appearance. Females are generally larger and more robust. Healthy specimens have bright, clear eyes and smooth, undamaged scales.
In the wild, Phallichthys amates is native to Central America, from Guatemala to Panama, where it inhabits slow-moving streams, rivers, ponds, and marshes with dense aquatic vegetation. These waters are typically moderately hard, warm, and slightly alkaline. The substrate is composed of fine mud or sand, and the fish spend much of their time among plants and cover, feeding on small invertebrates, algae, and organic detritus.
A well-planted aquarium of at least 60 litres is recommended for a small group of Merry Widows. Use a fine gravel or sand substrate and incorporate plenty of live plants such as Vallisneria, Java fern, Cryptocoryne species, and floating plants to provide cover and hiding places. Ensure good filtration and moderate water movement. A secure lid is advisable, as livebearers can jump when startled. Maintain stable, warm water with slightly alkaline pH.
The Merry Widow is an omnivore and thrives on a varied diet. Offer quality flake or micro-pellets as a staple, supplemented with algae-based foods, blanched vegetables, and occasional small frozen or live foods such as daphnia and brine shrimp. Feed twice daily in small amounts to maintain excellent water quality.
This livebearer is peaceful, active, and social, constantly on the move and best kept in a small group. Males will court females continuously, but serious aggression is rare. When kept in proper numbers, the Merry Widow is confident and displays natural behavior. They occupy all levels of the aquarium and are most active during the day.
The Merry Widow is suitable for a peaceful community aquarium with other small fish. Good tankmates include other peaceful livebearers, small peaceful community fish, small peaceful catfish, and snails. Avoid large predatory fish, aggressive cichlids, fin-nipping species, very boisterous tankmates, and large shrimp (which may be eaten).
Breeding the Merry Widow is straightforward. This is a prolific livebearer that usually breeds readily in warm, clean water. Males use a gonopodium to fertilize females internally, and fry are free-swimming at birth. Provide fine-leaved plants or cover to protect fry from being eaten by adults.
Tropical Fish Co is a leading UK aquatics specialist offering hardy and attractive livebearers like the Merry Widow direct to your door. Every fish is quarantined, inspected, and dispatched with expert care to ensure it arrives in peak condition. With decades of experience, transparent pricing, and exceptional customer support, we make it easy to add peaceful, easy-to-keep species to your collection. Order online today and enjoy fast, reliable delivery across the UK.
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