Moderate
Wien Lyra Swordtail (Xiphophorus hellerii)
16–28°C · pH 7–8 · 108L
£5.99
A hardy, colorful livebearer with a graceful flowing tail and easy care requirements, ideal for community aquariums. Easy care, peaceful. 23-27C, pH 7-8.5.
Care at a Glance
Scientific Name
Xiphophorus helleri
Max Adult Size
up to 12 cm
Lifespan
3 years
Care Level
Easy
Temperament
Peaceful
Temperature
23–27°C
pH Range
7–8.5
Hardness
5–30 dGH
Minimum Tank
100L
Diet
Omnivore
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Temperature
23–27°C
23°CIdeal27°C
pH Level
7–8.5
7Ideal8.5
Water Hardness
5–30 dGH
5 dGHIdeal30 dGH
Xiphophorus helleri
Swordtail Green Wagtail (Xiphophorus helleri green wagteil) - Tropical Fish for Sale UK
Beginner Friendly
Peaceful
£3.99/ fishSold Out
Shoal Pricing
— save up to 30%Shoaling fish: kept in a group they feel safer, stay calmer and show their best colour.
Your shoal
£32.00You save £7.90
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Live arrival guaranteed. If they don’t arrive healthy, email us a short unboxing video the same day for a replacement or refund. Packed in oxygenated bags with insulation and heat packs when needed.
£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.
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A hardy, colorful livebearer with a graceful flowing tail and easy care requirements, ideal for community aquariums. Easy care, peaceful. 23-27C, pH 7-8.5.
Care at a Glance
Scientific Name
Xiphophorus helleri
Max Adult Size
up to 12 cm
Lifespan
3 years
Care Level
Easy
Temperament
Peaceful
Temperature
23–27°C
pH Range
7–8.5
Hardness
5–30 dGH
Minimum Tank
100L
Diet
Omnivore
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller. Product-photo provenance and any image-specific limitations are stated on the listing.
Full Care Guide
Platy Fish Care: Tank Size, Temperature & Types
Platy is a trade name used for Xiphophorus maculatus, X. variatus and domestic forms. Start with at least three in a mature aquarium of at least 45 litres, verify the exact fish and measured water, and plan extra capacity before mixing sexes.
16 min readRead guide
Water Parameters
Maintain these water conditions for optimal health and vibrant colors
Temperature
23–27°C
23°CIdeal27°C
pH Level
7–8.5
7Ideal8.5
Water Hardness
5–30 dGH
5 dGHIdeal30 dGH
Green is one of the scarcer colours in the livebearer hobby, and this strain wears it with the classic wagtail pattern — a combination that makes the Green Wagtail Swordtail (Xiphophorus helleri green wagteil) a genuinely different pick for a community display. Reaching around 12 cm as an adult, it is a fish with real presence, cruising the middle level of the tank on the graceful flowing tail the swordtail family is famous for. Care is rated easy, so it suits newcomers just as well as experienced keepers after something less common.
Temperament is reliably peaceful. Platies, mollies, Corydoras catfish, Otocinclus and snails all make suitable companions, as do other calm livebearers of a similar size. Provide warm, neutral-to-alkaline water — 23–27 °C with a pH between 7.0 and 8.5 — and it will be comfortable across an unusually wide hardness band of 5–30 dGH. As an omnivore it takes a varied diet without any fuss, and a healthy fish can be expected to live for roughly three years.
Like the rest of its family, this is an active, sociable fish that patrols open water for much of the day, so leave a clear swimming lane along the front of the aquarium and balance it with planted cover towards the back. The classic community formula serves it well: steady filtration, routine partial water changes and the varied feeding an omnivore appreciates.
Care at a glance
- Adult size: around 12 cm
- Typical lifespan: about 3 years
- Temperature: 23–27 °C
- Water chemistry: pH 7.0–8.5, hardness 5–30 dGH
- Minimum aquarium: 100 litres
- Diet: omnivore; swims at the middle level
- Care level: easy; temperament: peaceful
Stocking notes
Plan for at least 100 litres before adding Green Wagtails, which gives this larger livebearer room to stretch out. Leave large aggressive cichlids, fin-nipping barbs and big predatory fish off the stocking list, and remember that very small fry or shrimp may end up as a snack. If you are building a livebearer-themed display, the green colouring contrasts beautifully with red and gold forms elsewhere in our swordtail range. Orders travel with a licensed live-animal courier and every fish is covered by our live arrival guarantee.
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What customers say about ordering from us
4.6 on Google Maps, rated 4.6 out of 5 (opens in a new tab)4.4 · 91 shop reviews read them, rated 4.4 out of 5
- 4 out of 5Verified buyer
I have a small group of long finned mountain minnows. So was delighted to be able to order ten of this variety to increase the genetics in my tank . The ones I recieved are healthy but it’s to early to give a verdict on wether they are of a long finned type since they are small currently.
Gordon Walker · 23 Sept 2026
- 5 out of 5Verified buyer
100% success travel and "installation". Pleased with quality of purchase. The Siamese fighter a bit "shy" so have not yet seen him at his best yet but looking good. Happy customer. GG
George E Garratt · 21 Sept 2026
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