Mollies – Dalmation Molly 5cm

Dalmation Molly: A Hardy and Peaceful Freshwater Favourite

The Dalmation Molly (Poecilia sphenops) is a striking freshwater fish with a unique black-and-white spotted pattern resembling a Dalmatian dog. These active and social fish are ideal for community aquariums, bringing both beauty and personality to your tank. Their hardiness and ease of care make them a popular choice for aquarists of all experience levels.

How to Identify Male and Female Dalmation Molly

Sexing Dalmation Mollies is straightforward. Males have a thinner, more streamlined body and a pointed anal fin, known as the gonopodium. Females are larger with a rounder belly and a fan-shaped anal fin. These physical traits make it easy to distinguish males from females in a group.

How to Tell If a Dalmation Molly Is Pregnant

Female Dalmation Mollies are livebearers, meaning they give birth to live fry. A pregnant female will develop a rounded abdomen, which grows larger as the fry develop. Additionally, a dark gravid spot near the anal fin may become visible. Pregnancy typically lasts 4–6 weeks, and as the female nears delivery, she may become less active or seek hiding spots.

Breeding The Dalmation Molly

Breeding Dalmation Mollies is easy, even for beginners. Keep one male with two or three females to encourage breeding while minimizing stress on the females. Provide live plants like Java moss or floating vegetation for fry to hide. Females can give birth to 20–100 fry at a time. To protect the fry, either use a breeding box or move the adults to another tank after birth.

Tank Mates for Dalmation Mollies

Dalmation Mollies are peaceful and compatible with many other community fish. Suitable tank mates include guppies, tetras, platys, swordtails, and Corydoras. Avoid aggressive or fin-nipping species, as they may stress the mollies. Keeping them with similarly peaceful tank mates ensures a harmonious environment.

Lifespan and Group Size

Dalmation Mollies have a lifespan of 2–5 years when kept in good conditions. To promote social behaviour, keep them in groups of at least 4–6 individuals. A mix of males and females helps maintain a natural hierarchy and encourages their active, social nature.

Caring for Dalmation Mollies

Dalmation Mollies thrive in tanks of at least 60 liters with water temperatures between 22°C and 28°C and a pH range of 7.0–8.5. They prefer slightly brackish water, so adding 2–3 grams of aquarium salt per litre improves their health and mimics their natural environment. Provide a tank with both open swimming areas and live plants for resting and grazing.

Feeding Dalmation Mollies

As omnivores, Dalmation Mollies enjoy a varied diet. Offer high-quality flakes or pellets as their staple food. Supplement their diet with blanched vegetables like zucchini, spinach, or cucumber, and occasional live or frozen foods like brine shrimp and bloodworms. A balanced diet helps maintain their vibrant patterns and overall health.

FAQs

How can I tell male and female Dalmation Mollies apart?
Males have a pointed gonopodium, while females are larger with a rounded belly and fan-shaped anal fin.

How do I know if my Dalmation Molly is pregnant?
Pregnant females develop a rounded abdomen and may show a dark gravid spot near their anal fin.

Are Dalmation Mollies fin nippers?
No, they are generally peaceful, though males may chase each other during breeding.

What tank mates are suitable for Dalmation Mollies?
They pair well with guppies, platys, tetras, Corydoras, and other peaceful community fish.

How many Dalmation Mollies should I keep together?
Keep at least 4–6 mollies together to encourage natural social behaviour.

What is the lifespan of Dalmation Mollies?
They live 2–5 years with proper care.

Species Overview

• Species: Poecilia sphenops
• Common Name: Dalmation Molly
• Origin: Captive-bred (originally from Central and South America)
• Diet: Omnivore
• PH Range: 7.0–8.5
• Temperature: 22°C–28°C
• Max Size: Up to 10 cm
• Tank Size: Minimum 60 liters