Dalmatian Molly


The Dalmatian Molly is a hybrid color variation of Poecilia latipinna, the Sailfin Molly. The Dalmatian Molly has a black and white body, and is sometimes referred to as the Marbled Molly or Marbled Sailfin Molly. Mollies have the ability to adapt to a variety of salt levels in the aquarium. With a gradual acclimation, these fish may be maintained in either a freshwater aquarium or a saltwater aquarium. In the freshwater aquarium, a teaspoon of aquarium salt per gallon is recommended for optimum health.

The Dalmatian Molly prefers a tank of at least 30 gallons, densely planted with plenty of strong plants such as Java fern, Sagittaria, Vallisneria and Anubias. They require a good filtration system because of their hearty appetites. The Dalmatian Molly is well suited for the community tank because of its peaceful nature, and is compatible with other peaceful, large fish that can withstand hard water. They may pursue their young and the young of the other fish.

The pointed anal fin and much larger dorsal fin on the male, and the rounded anal fin and pregnancy spot on the female differentiate the two. The Dalmatian Molly is a livebearer that requires a spawning box in a large 25 gallon, or larger breeding tank. The aquarium should be planted as densely as possible or have a thick algae mat. Having a group of floating plants in the corner of the aquarium will promote rearing outside of the breeding tank. Every 60-70 days the female will give birth to 10-60 young that are already approximately one-half inch long.

The Dalmatian is omnivorous and requires algae. Provide these fish with an algae-based flake food, as well as freeze-dried bloodworms, tubifex, and brine shrimp.

{ 4 comments… read them below or add one }

Barry just bought a couple of dalmation molly's and all there doing is hideing behind my filter and staying on top of my tank is this normal September 7, 2010 at 1:51 am

Its really helpful

Kapil January 18, 2011 at 2:01 pm

Very east to breed, social. I have 2 pairs of dalmatian mollies, 1 pair of black balloon molly kept with a school of Tiger Barbs, a school of rosy barbs, & 2 pairs of marigold swordtails in 15 gallon tank.

mollyowner March 19, 2011 at 4:35 pm

I have 3 dalmatian molly’s (2female 1 male) and 1 balloon molly (female)
one of the molly’s gave birth and i didn’t reline it until i saw one swimming around, there are only 4 babies. I am trying to breed the balloon and dalmatian (together), and also the just dalmatians. how long do i need to keep them in a breeder tank? And how long until i should put the female in a nursery to have her babies?

Lauren December 28, 2015 at 5:25 pm

I don’t what to name mine but it is a female with orange and white with black spots!
What do I name it?!

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