Are Black Molly Fish Aggressive?

Black Mollies are generally a peaceful community fish, but

multiple males kept in the same tank can become aggressive

, and females which are outnumbered by males will tend to be harassed. The optimal ratio that we recommend is 3 females to each male.

Are black mollies friendly?

Molly fish are very popular with new aquarists for many good reasons!

They are peaceful, easy to care for, and as easy to breed as Guppies and other livebearers

!

Do black mollies fight?

The reason mollies are fighting and chasing each other around the tank is all down to mating behavior

. The fighting you are seeing is males either chasing females or sparing with other males. Having the male to female ratio correct will help solve the problem.

Do mollies Nip other fish?

Despite being peaceful and friendly, mollies are notorious for being fin nippers. Male mollies especially love nipping the fins of other males to establish their dominance and defend their territory.

Mollie fish also tend to nip at other fish with large, flowing fins.

How big do black mollies get?

Size:

6 to 15 cm (31⁄2 to 6 inches)

. Preferred Water Chemistry: Hard, basic fresh water to brackish or marine. Mollies are euryhaline, meaning they do well in fresh, brackish, or marine systems, but they do not thrive in soft water.

Can I keep a single molly?

Is it OK to keep one Molly Fish by herself?

Yes, a single Molly Fish can live alone as long as she has all that she needs: clean water, good food, and enough space to swim and play in

. Please don't forget though, that she will be happier with tank mates—whether fellow Mollies or other compatible fish.

Can mollies live with bettas?

Some of the main things to remember when adding mollies and bettas together are:

Mollies survive better in slightly brackish water

, while you may think bettas wouldn't like this the international betta congress approve of using aquarium salt as a general preventative and believe it's also beneficial to bettas.

Can mollies and guppies breed?

Guppies and Mollies can easily create hybrids if they are kept in the right conditions

. There are two names for two types of hybrids. A hybrid fry from a male Guppy and a female Molly is called Golly, whereas a fry from a male Molly and a female Guppy is called Muppy.

What do Black Mollies eat?

They will eat

just about any green vegetable, but we recommend sticking with zucchini, cucumbers, and shelled peas

. You should strive to feed them vegetables at least once per week, but twice if you can. The base of a Black Mollies diet should be a high-quality flake food, such as the TetraMin Flake by Tetra.

What kills molly fish?

There are 3 main reasons mollies die unexpectedly, they are

poor water quality, low oxygen levels, and diseases

. Another reason mollies die suddenly is low or high water temperature following a heater failure. How Do You Know Your Aquarium Water Quality Is Poor?

Are my mollies mating?

Black mollies do not pair off when they mate

. The males will fertilize any females they come in contact with, and they will even try to fertilize females that have already been fertilized. Once the female is fertilized, she will keep the eggs inside her body for 60 to 70 days until they hatch.

Can mollies live with goldfish?

Mollies Temperament

Mollies are also another peaceful breed of fish! However,

they are not recommended to be placed with Goldfish

, which may not make any sense due to their temperaments being similar. This is due to the matter that Mollies have a tendency to become aggressive towards Goldfish!

Do mollies eat guppies?

And

there is always a slight risk that mollies will nip fish that have long fins such as guppies

. So before you put the two fish together in a tank make sure you read the article below to find out the best chances of success.

Can mollies eat each other?

It is quite possible yes

. Depending on the tank size and the number of Mollies in the group.

Can mystery snails live with mollies?

Mystery snails should get along with most community fish

. I have had good experience with mystery snails with Platy, Swordtail, Molly, Guppy, Tetras, Gouramis, & Rainbow Sharks. Just be sure your water quality is good, that's where I had a hard time with the snails, they don't like bad water. 1 person likes this.

Do mollies clean the tank?

Indeed,

Mollies can help you keep your aquarium free of algae and relatively clean

. They do so by picking and eating the algae that naturally grow on the rocks and plants of your aquarium.

Are black mollies Hardy?

The Black Molly is also known as the common Black Molly, is

a hardy fish

that is well suited to beginners. It does well in water between 68 and 82-degrees Fahrenheit and prefers a tank that is larger than 30 gallons. Black Molly's like when you keep the pH between 7 and 7.8.

How fast do black mollies grow?

How fast do black mollies grow? Black mollies tend to grow a little bit slower than normal mollies. It may take a black molly around

9 to 10 months

to grow to its full size, which for males is around 3 inches in length, and for females about 5 inches in length at most.

How many mollies should I have?

Mollies tend to stick together most of the time, which is why you should keep them in groups of

4 or more

. If you are planning to keep more than 4 mollies, make sure you get a 20-gallon tank at least. A 45- gallon tank should be a perfect choice if you plan to manage multiple shoals of mollies.

What fish are compatible with Black Mollies?

• Guppy Fish (Poecilia reticulata)
• Endlers (Poecilia wingei)
• Platys (Xiphophorus)
• Danios (Cyprinidae)
• Tetris (Characiformes)
• Gouramis (Osphronemidae)
• Angelfish (Pterophyllum altum)
• Shrimp (Caridea)

What is the lifespan of a molly?

The average molly fish lifespan is around

three to five years

. While they aren't the longest-living freshwater species out there, there is some wiggle room depending on what species you get. The quality of care you provide will also impact their lifespan significantly.

Will mollies eat fry?

In a breeding net, the fry are exposed to the same water conditions the rest of the tank is experiencing.

Cannibalism is normal with mollies

and other livebearers like guppies and platys. As fecund as they are, you don't really need to worry about saving every last one.

How can you tell the gender of mollies?

They are easily recognizable by their long, specialized anal fin that is used to deposit eggs in females. Males of fancy species, such as sailfin mollies or lyretail mollies, have longer, more elaborate fins that give each variation its name.

Female mollies are bigger and wider in the belly than male mollies

.

How many mollies Can I put in a 20 gallon tank?

Will mollies eat shrimp?

yes. Mollies will eat most anything

. Most anything will eat CRS, or any shrimp small enough for them to tear apart.

Can mollies breed with swordtails?

1-

Molly And Swordtail Can't Interbreed

The first reason why it is impossible for them to interbreed is that they belong to different families. Even though they are both livebearer fish mollies are part of the Poecilia family and swordtails originate from the Xiphophorus family.

How many mollies can be in a 10 gallon tank?

You can put

three mollies

in a 10-gallon tank. As a general rule, an inch of fish requires one gallon of water. In captivity, mollies usually grow to be 3–4.5 inches long, so each fish will need around three gallons of water to swim freely.