Easy
Japan Blue Endler Guppy (Poecilia endler)
24–30°C · pH 7–8.5
£6.99
One female Japan Blue Sky guppy (Poecilia reticulata), XL size, per quantity. A peaceful, easy livebearer for 60 litres or more at 22–28°C, pH 7.0–8.0 and 9–18 dGH.
Breeding SpeciesCommunity FishEasy CareFreshwater FishJapan Blue GuppyLivebearersPeacefulPoecilia reticulata
Care at a Glance
Scientific Name
Poecilia reticulata
Max Adult Size
up to 5 cm
Care Level
Easy
Temperament
Peaceful livebearer
Temperature
22–28°C
pH Range
7–8
Hardness
9–18 dGH
Minimum Tank
60L
Diet
Omnivore: small flake or micro-pellet with small frozen or live foods
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
22–28°C
22°CGuidance range28°C
pH Level
7–8
7Guidance range8
Water Hardness
9–18 dGH
9 dGHGuidance range18 dGH
Poecilia reticulata
Japan Blue Sky Female Guppy – XL (Poecilia reticulata)
Beginner Friendly
Peaceful
£43.99/ fish
Shoal Pricing
— from £30.80 eachQuantity discounts are pricing offers, not a group-size recommendation. Check the full care guidance and your existing animals before choosing a quantity.
Your shoal
£352.00You save £87.90
- Live arrival guaranteed. Email photos the same day if anything is wrong. An unboxing video is optional; we recommend one when practical to help us review problems faster. How it works
- £19.95 delivery, half price from £100, free from £200, or free on the whole order with free delivery fish packs.
- Check our reviews (opens Google Business Profile in a new tab) on Google.
One female Japan Blue Sky guppy (Poecilia reticulata), XL size, per quantity. A peaceful, easy livebearer for 60 litres or more at 22–28°C, pH 7.0–8.0 and 9–18 dGH.
Breeding SpeciesCommunity FishEasy CareFreshwater FishJapan Blue GuppyLivebearersPeacefulPoecilia reticulata
Care at a Glance
Scientific Name
Poecilia reticulata
Max Adult Size
up to 5 cm
Care Level
Easy
Temperament
Peaceful livebearer
Temperature
22–28°C
pH Range
7–8
Hardness
9–18 dGH
Minimum Tank
60L
Diet
Omnivore: small flake or micro-pellet with small frozen or live foods
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
Guppy Care Guide: Poecilia reticulata
Guppies are social livebearers suited to a prepared beginner, not a fish-per-litre formula. Use a mature filtered aquarium, tested neutral-to-alkaline mineral-bearing water, deliberate sex and population planning, open swimming room, cover and a separation option.
15 min readRead guide
Water Parameters
Read the full care guidance when planning conditions for your aquarium.
Temperature
22–28°C
22°CGuidance range28°C
pH Level
7–8
7Guidance range8
Water Hardness
9–18 dGH
9 dGHGuidance range18 dGH
A large Japan Blue Sky guppy female
The Japan Blue Sky is a fancy guppy (Poecilia reticulata) strain bred for blue colour. This listing is for one female of XL size. Females are larger and plainer-bodied than males, with the strain colour mainly in the tail and fins.
| Scientific name | Poecilia reticulata (fancy strain) |
|---|---|
| Family | Poeciliidae (livebearers) |
| Adult size | Females up to about 5 cm |
| Temperature | 22–28°C |
| pH | 7.0–8.0 |
| Hardness | 9–18 dGH |
| Aquarium | 60 litres or more for a small group |
| Sold as | One female per quantity, XL size |
What you receive
One quantity is one female Japan Blue Sky guppy, XL size. Order more for more females; keeping two or three females per male reduces chasing.
Aquarium and water
A mature, cycled aquarium of 60 litres or more suits a small group, with gentle flow and fine-leaved or floating plants. Keep a routine 22–28°C, pH 7.0–8.0 and 9–18 dGH, inside the FishBase, Seriously Fish and OATA guidance ranges.
Feeding
Feed a quality small flake or micro-pellet once or twice a day, with small frozen or live foods such as Daphnia, brine shrimp and bloodworm a few times a week.
Tank mates and behaviour
Peaceful and ideal for community aquariums with other small, calm fish that like similar water: platies, mollies, Corydoras, small rasboras and peaceful tetras. Avoid fin-nippers and larger fish that could eat guppies.
Follow the arrival sequence before releasing the fish
Tropical Fish Co’s delivery and Live Arrival Guarantee policy explains the packing and arrival procedure. Livestock is hand-bagged in pure oxygen and placed in an insulated poly box, with a heat pack when the weather calls for it. Someone must be at the address to receive the parcel because live animals cannot be left unattended.
- Receive the parcel in person and start filming before opening it. Show the parcel still sealed with the outer box visible.
- Open the parcel in one continuous take. Keep filming until the fish can be seen inside the sealed bag before anything is disturbed.
- Float the bag for 20–30 minutes so the temperature equalises slowly.
- Do not pour the bag water into the aquarium. Release the fish without adding transport water to the established system.
If a Live Arrival Guarantee claim is required, contact us on the same day with the order number and the continuous unboxing video. Before the parcel arrives, confirm that ammonia and nitrite read zero and that the aquarium matches the water values on this page.
Frequently asked questions
Is this a pair?
No. One quantity is one female guppy, XL size.
Will a female breed on her own?
Female guppies can store sperm, so a female that has been with males may still give birth after arrival.
What water do guppies need?
A routine 22–28°C with pH 7.0–8.0 and 9–18 dGH, in a mature, cycled aquarium.
Public references
- FishBase: Poecilia reticulata — identity, native range, environment and size.
- Seriously Fish: Poecilia reticulata — water conditions, behaviour and breeding.
- OATA: How to look after guppies and mollies — water quality, feeding and livebearer guidance.
- RSPCA aquarium environment guidance — biological filtration and the aquarium nitrogen cycle.
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 · 120 shop reviews read them, rated 4.4 out of 5
- 5 out of 5Verified buyer
Easy website plenty of info on fish your buying great to pick a time slot
TRACEY DURRANT · 7 Oct 2026
- 4 out of 5Verified buyer
Got some lovely fish thank you
Kevin Mackie · 7 Oct 2026
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Licensed Courier
Moved by UK carriers licensed to handle live animals
Trained Packing
Hand-packed with oxygen bags, poly box, heat pack
Live Arrival Guarantee
Email photos the same day; an optional unboxing video helps us review problems faster — claim terms apply
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