Easy
Koi Kohaku Swordtail (Xiphophorus hellerii)
22–27°C · pH 7–8 · 108L
£9.99
Active Wagtail Lyra Swordtail livebearer for hard-water community aquariums, with bright colour, steady movement and straightforward care.
Community FishFreshwaterHard Water FishLivebearerModerate CarePeacefulSwordtailWagtail Swordtail
Care at a Glance
Scientific Name
Xiphophorus hellerii
Max Adult Size
up to 14 cm
Care Level
Easy to moderate
Temperament
Peaceful but active livebearer
Temperature
20–26°C
pH Range
7–8.2
Minimum Tank
110L
Diet
Quality flakes, small pellets, vegetable foods and frozen foods
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.
Water Parameters
Temperature
20–26°C
20°CIdeal26°C
pH Level
7–8.2
7Ideal8.2
Xiphophorus hellerii
Wagtail Lyra Swordtail (Xiphophorus hellerii)
Peaceful
£7.99Sold 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
£64.00You save £15.90
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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.
Read our reviews on Google (opens Google Business Profile in a new tab) or see verified buyer reviews and photos. Human support, careful packing and clear delivery updates for live aquatics.
Active Wagtail Lyra Swordtail livebearer for hard-water community aquariums, with bright colour, steady movement and straightforward care.
Community FishFreshwaterHard Water FishLivebearerModerate CarePeacefulSwordtailWagtail Swordtail
Care at a Glance
Scientific Name
Xiphophorus hellerii
Max Adult Size
up to 14 cm
Care Level
Easy to moderate
Temperament
Peaceful but active livebearer
Temperature
20–26°C
pH Range
7–8.2
Minimum Tank
110L
Diet
Quality flakes, small pellets, vegetable foods and frozen foods
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size above for the actual shipping size. 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
20–26°C
20°CIdeal26°C
pH Level
7–8.2
7Ideal8.2
Wagtail Lyra Swordtail (Xiphophorus hellerii) is an active livebearer strain of Xiphophorus hellerii, selected for its wagtail markings and lyra-style finnage.
Quick facts
| Scientific name | Xiphophorus hellerii |
|---|---|
| Adult size | 10-14 cm, with mature males carrying a sword extension |
| Minimum aquarium | 110 litres or more |
| Temperature | 20-26 C |
| pH | 7.0-8.2 |
| Temperament | Peaceful but active livebearer |
| Diet | Quality flakes, small pellets, vegetable foods and frozen foods |
Care and setup
Give swordtails horizontal swimming room, steady filtration and mineral-rich water. A mature aquarium of 110 litres or more is the sensible starting point for adults. Plants around the sides help break sightlines while leaving open midwater space.
Feeding
Feed a varied omnivore diet: quality flakes or small pellets, spirulina or vegetable foods, and occasional frozen foods. Small regular meals are better than heavy feeding, especially in warm livebearer tanks where waste can build quickly.
Compatibility
Keep with similar hard-water community fish such as Koi Kohaku Swordtail, Koi Tricolour Swordtail and Assorted Swordtail. Males may chase, so mixed groups do better with more females than males and enough room. Avoid soft-water specialists, fin nippers and cramped tanks.
Arrival and first week
Livestock is packed for temperature stability, sent with a licensed live-animal courier, and covered by our Live Arrival Guarantee. After arrival, acclimate slowly, keep lights low, and watch appetite, breathing and posture during the first week.
Customer Reviews
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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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