Gold Black Molly (Poecilia sphenops gold black molly)
21–28°C · pH 7.5–8 · 81L
£5.99
Assorted sailfin mollies (Poecilia latipinna): colours vary and cannot be chosen; males grow a tall sail-like dorsal fin. One unsexed fish per quantity (3–4 cm or 5–7 cm) for hard, alkaline water at 21–26°C.
Community FishFishFreshwaterlisting-audit-2026-10-02LivebearersModerate CareMollyShow Fish
Care at a Glance
Scientific Name
Poecilia latipinna
Max Adult Size
up to 15 cm
Care Level
Easy
Temperament
Peaceful livebearer
Temperature
21–26°C
pH Range
7–8.5
Hardness
15–35 dGH
Minimum Tank
80L
Diet
Omnivore: vegetable-rich flake or pellet with greens
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
21–26°C
21°CIdeal26°C
pH Level
7–8.5
7Ideal8.5
Water Hardness
15–35 dGH
15 dGHIdeal35 dGH
Poecilia latipinna
Sailfin Molly Mix (Poecilia latipinna)
Beginner Friendly
Peaceful
£6.99
Multi-Buy Pricing
— save up to 20%Save when buying multiple fish. Each quantity is one fish; sex and pair formation are not guaranteed unless the selected variant explicitly states them.
Selected fish
£12.88You save £1.10
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.
Assorted sailfin mollies (Poecilia latipinna): colours vary and cannot be chosen; males grow a tall sail-like dorsal fin. One unsexed fish per quantity (3–4 cm or 5–7 cm) for hard, alkaline water at 21–26°C.
Community FishFishFreshwaterlisting-audit-2026-10-02LivebearersModerate CareMollyShow Fish
Care at a Glance
Scientific Name
Poecilia latipinna
Max Adult Size
up to 15 cm
Care Level
Easy
Temperament
Peaceful livebearer
Temperature
21–26°C
pH Range
7–8.5
Hardness
15–35 dGH
Minimum Tank
80L
Diet
Omnivore: vegetable-rich flake or pellet with greens
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
Maintain these water conditions for optimal health and vibrant colors
Temperature
21–26°C
21°CIdeal26°C
pH Level
7–8.5
7Ideal8.5
Water Hardness
15–35 dGH
15 dGHIdeal35 dGH
Assorted sailfin mollies for a hard-water community aquarium
The sailfin molly (Poecilia latipinna) is a livebearer from coastal fresh and brackish waters of the south-eastern United States and north-eastern Mexico. This listing is an assorted colour mix: colours and patterns vary and cannot be chosen. Mature males raise a tall, sail-like dorsal fin; females are deeper-bodied.
FishBase records up to 15 cm total length; Seriously Fish gives 12.5 cm standard length.
| Scientific name | Poecilia latipinna |
|---|---|
| Family | Poeciliidae (livebearers) |
| Origin | South-eastern USA and north-eastern Mexico |
| Adult size | Up to about 12.5–15 cm |
| Temperature | 21–26°C |
| pH | 7.0–8.5 |
| Hardness | 15–35 dGH |
| Aquarium | Base of at least 76 × 38 cm (about 80–87 litres) or more |
| Sold as | One unsexed fish per quantity; colours vary |
What you receive
Choose 3–4 cm or 5–7 cm, then the quantity: one quantity is one live sailfin molly from an assorted mix, unsexed. Colours vary, so the fish you receive will not match any photo exactly. Two or three females per male reduces chasing.
Aquarium and water
A mature aquarium with a base of at least 76 × 38 cm (Seriously Fish; OATA suggests at least 80 litres), with open swimming space and plants. Sailfin mollies need hard, alkaline water: 21–26°C, pH 7.0–8.5 and 15–35 dGH, and appreciate a vegetable-rich diet.
Feeding
An omnivore that grazes algae: feed a vegetable-rich flake or pellet daily, with blanched greens and small frozen foods for variety.
Tank mates and behaviour
Peaceful with other robust fish that like hard water — platies, swordtails, rainbowfish and catfish. Avoid fin-nippers.
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
Can I choose the colours?
No. This is an assorted mix; colours and patterns vary.
Are they sold in pairs?
No. One quantity is one unsexed fish.
What water do they need?
Hard, alkaline water: 21–26°C, pH 7.0–8.5 and 15–35 dGH.
How big do they get?
Up to about 12.5–15 cm.
Public references
- FishBase: Poecilia latipinna — identity, native range and size.
- Seriously Fish: Poecilia latipinna — aquarium size, water and behaviour.
- OATA: How to look after guppies and mollies — water quality, aquarium size and livebearer guidance.
- RSPCA aquarium environment guidance — biological filtration and the aquarium nitrogen cycle.
Customer Reviews
No reviews for this item yet. Bought one? Honest reviews only, good or bad.
What customers say about ordering from us
- 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
Reviews of our shop, collected by Judge.me, an independent third-party review collector. Newest first.
