Top 10 Livebearer Species Roundup: Guppy Molly Platy Endler
Few fish reward beginners as quickly as livebearers — drop a trio in cycled water and within weeks fry hang behind the filter intake. The top 10 livebearer species ranked here favour adaptability to PUB tap, colour stability across generations, and availability from Singapore breeders rather than one-off imports. This roundup from Gensou Aquascaping at 5 Everton Park covers Poeciliidae picks suited to HDB-friendly tank sizes from 20 to 200 litres. The top 10 livebearer species here include both fancy strains and harder-to-source wildtypes that resist the inbreeding decline plaguing mass-market guppies.
1. Guppy (Poecilia reticulata)
The genus benchmark — adults stay under 4cm and tolerate pH 6.8 to 8.2 with KH as low as 1. A 30cm cube houses one male to two females comfortably. Iwarna and C328 Clementi list show-strain Half Black AOC and Moscow Blue lines at SGD 5-15, with Japanese Endler crosses creeping past SGD 25. Watch the gravid spot — a dark crescent below the anal fin signals fry within four to six days.
2. Endler’s Livebearer (Poecilia wingei)
Pure N-class Endlers from Cumana strain breeders run smaller than guppies at 2.5cm and produce neon-orange chevrons no fancy guppy matches. Carousell breeders in Punggol post N-class trios at SGD 25-50. Keep them isolated from guppies; the two cross readily and contaminate any pure line. They thrive in heavily planted nano tanks above 20 litres.
3. Platy (Xiphophorus maculatus)
Mickey Mouse, sunset and wagtail platies sit a notch hardier than guppies because the shorter fins shrug off nipping. Adults reach 4-6cm and accept any community above 60 litres. Petopia and ANS price them at SGD 4-8 from the freshwater fish range. Females grow larger and colour more uniformly than males.
4. Swordtail (Xiphophorus hellerii)
The trailing lower caudal extension on males is unmistakable. Adults reach 12cm and need a 90-litre minimum because males chase relentlessly. Pineapple, lyretail and red velvet morphs run SGD 6-15 at Thomson shops. Pair one male per three females or expect harassment-stressed females within months.
5. Sailfin Molly (Poecilia latipinna)
The dorsal sail rivals any anabantid display when fully grown males flare. Adults reach 10cm and prefer harder water than most livebearers — supplement KH up to 8 with crushed coral fragments. C328 lists silver and dalmatian sailfins at SGD 8-18. Feed algae-rich pellets from the fish food range to keep the sail intact.
6. Balloon Molly (Poecilia latipinna selectively bred)
The compressed body shape divides hobbyists — some adore it, others view it as ethically dubious. Adults stay under 6cm and need warm 26-28°C water with moderate hardness. SGD 5-10 at most local shops. Watch for swim bladder disorders; the deformed spine predisposes affected lines to constipation, so feed sparingly with two fast days weekly.
7. Wrestling Halfbeak (Dermogenys pusilla)
Native to Southeast Asian peat swamps and underrepresented despite local origin. Adults reach 7cm with the elongated lower jaw used in territorial wrestling matches. Iwarna stocks wild-caught halfbeaks at SGD 8-15. They are surface feeders requiring floating food and benefit from blackwater conditioning with ANS Catappa Leaves Small.
8. Limia (Limia nigrofasciata)
The humpbacked Limia from Haiti shows a dorsal arch in mature males found in no other livebearer. Adults reach 6cm and tolerate brackish-leaning water above pH 7.5. Specialist Carousell breeders list them at SGD 12-25. Less prolific than guppies which suits hobbyists tired of fry overruns.
9. Black Molly (Poecilia sphenops)
Solid jet black throughout with no scale flashing — the silhouette species in any community tank. 8cm adults, 75-litre minimum, prefer slightly hard alkaline water. SGD 5-10 across Serangoon North shops. Add a QANVEE Bio Sponge Filter with light flow; mollies dislike strong currents despite their robust build.
10. Variatus Platy (Xiphophorus variatus)
Slimmer and more elongated than the standard platy, with sunset-and-tiger marbling along the flank. Adults reach 7cm. Tank requirements mirror swordtails — 90 litres, soft to medium hardness, 24-27°C. SGD 5-12 at C328 and Iwarna. The hardiest livebearer for cooler ambient HDB tanks where the temperature drops below 25°C overnight.
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