- Mollies are generally peaceful fish but they are known to occasionally nip each other’s fins.
- Males can be aggressive toward females due to mating needs, so it is best to keep multiple females with one male.
- They are found in freshwater, brackish water and even in saltwater environments.
Welcome to the Molly Quiz, where you can test your knowledge and learn more about one of the most popular breeds of pet fish! These fish are known for being “starter” fish, the ones that you get when you are a first-time fish owner because they are hardy, peaceful and easy to care for.
Take the quiz to test your knowledge of Mollies if you believe you know everything there is to know about them or if you want to learn more about this peaceful fish!
Types Of Mollies
Not only are mollies a popular choice for aquariums due to their hardiness and peaceful nature but they come in a variety of beautiful colors, sizes, and patterns. This fish belongs to the genus Poecilia of which there are currently around 40 recognized species to choose from. Some of the more popular varieties are:
- Black Molly (Poecilia latipinna)
- Cauca Molly (Poecilia caucana)
- Shortfin Molly (Poecilia mexicana)
- Liberty Molly (Poecilia salvatoris)
- Giant Sailfin Molly (Poecilia velifera)
- Sulphur Molly (Poecilia sulphuraria)
- Amazon Molly (Poecilia formosa)
Interesting Molly Facts
This fish was first identified in the 1820s and is native to North and South America. It has been a popular aquarium fish since the late 19th century/beginning of the 20th century and all species are able to hybridize with each other which is why they have such an array of colors, patterns, and configurations. Read on to discover more interesting facts.
- Mollies are shoaling fish, not schooling fish, which means that although they tend to travel in groups, they do so more for social purposes than for traveling in specific directions with each other.
- The most common varieties of this fish typically available for aquariums are the common molly, the black molly, the white molly, the sailfin molly, and the Mexican molly.
- The male species, who tend to be much smaller than female mollies, have a specialized anal fin called a gonopodium. This rod-shaped organ is used to deposit sperm in female mollies, who can retain it for extended periods of time.
- They are considered tropical fish which means they prefer warmer temperatures. The recommended temperature range to keep this fish in is anywhere between 70 and 80 degrees Fahrenheit.
- They are sometimes confused with guppies who are in the same family.