Balloon Molly

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Rating: 3.1/5 (7 votes cast)


The Balloon Molly is a hybrid variation of Poecilia latipinna,the Sailfin Molly. The Balloon Molly has an arched back and a rounded, large belly. Color varieties include a combination of black, yellow, and white. These fish also have a large, lyre-shaped caudal fin and an impressive dorsal fin. 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 Balloon Molly prefers a tank of at least 30 gallons with lots of strong plants such as Java fern, Sagittaria, Vallisneria and Anubias. They require a good filtration system because of their hearty appetites. The Balloon Molly is well suited for the community tank because of its peaceful nature, and is compatible with other peaceful, large fish that can withstand similar water conditions. They may pursue their young and the young of 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 Balloon Molly is a livebearer that requires a spawning box in a 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 give birth to 10-60 young that are already approximately one-half inch long.

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

Balloon Molly, 3.1 out of 5 based on 7 ratings
3 Reviews to “Balloon Molly”
Brett on September 18th, 2009 12:51 am

Beautiful fish, have noticed the female molly can be a little aggressive towards female platys, not sure why but likes to try at nip at its fins even at the guppy’s fins. Bit of a bully, but no deaths have occurred as a result of this playful bullying.

Female Is obviously a balloon shape and fat for lack of better words.

Male is longer in length, will be chasing the female around. and is skinnier-fit looking.

Awesome fish really great to google at and to have as pets.

chynna on October 2nd, 2009 7:44 am

when u get a female balloon molly, and put her in with the male molly he’s known to try mating with her she swims away at first but after awhile she will give in to the male molly…=)

val on August 14th, 2010 7:20 am

i have seen my molly male mate with my balloon molly not one one but two of them they are going crazy..do not know why but my male balloon molly ignoring them..he looks pist but i saw my molly for fifteen minues and he was getting them..Is this okay?


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