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How Many Mollies in a 30 Gallon Tank? (Explained)

Fish tanks are considered one of the common home decorating items that you see in almost every house.

Different types of water dividing plants and fish make the fish tank more attractive. In today’s article, we will discuss how many mollies you can keep in a 30-gallon fish tank. 

How many mollies in a 30-gallon fish tank? 

Generally, mollies are small-sized fish that are mostly preferred to use in smaller fish tanks. A molly needs at least 10-gallon water in the aquarium. So, a 30-gallon fish tank will be able to hold up to four mollies in it. Larger mollies such as the sailfins require a 30-gallons tank.

Nowadays, many people tend to keep a fish tank or aquarium in their house to decorate it. Having a fish tank in your house will increase the attractiveness of your house.

Generally, people store water-dwelling plants and animals such as fishes and turtles in the aquarium. There is a variety of fish available to put inside an aquarium including goldfish, Angelfish, and mollies.

If you are considering putting mollies in your aquarium, you need to consider a few factors before putting them inside the aquarium.

The size of your fish tank is one of the main factors that should be kept in mind before putting mollies in a fish tank. If you have a 30-gallon fish tank, you can put up to four mollies in it.

Generally, each Molly takes about 10 gallons of water to swim comfortably. In that case, 30-gallon fish tank will be able to hold at least three mollies in it. Since the Molly should be kept in pairs, another one in the aquarium.

Having fish more than that will make the aquarium overcrowded and may cause a territorial fight between the fishes. Below is a brief discussion on how many mollies you can keep inside a 30-gallon tank: 

Black mollies: 

Since the black mollies are considered shoaling fish, so they are comfortable Sharing space with the same type of fish. So, you should not put more than four black mollies in a 30-gallon tank.

Balloon mollies:

There are some limitations on how many balloon mollies you can keep inside a 30-gallon fish tank. You can put four balloon mollies in a 30-gallon fish tank. In some cases, you can add 6 mollies as well.

Is a 30-gallon tank good for mollies?

Choosing the right size fish tank for your fish is very important. It will provide them with space for swimming around the aquarium and will not let them interfere with other fish.

When you consider putting mollies inside a 30-gallon tank, you can put up to 4 pieces of 4 inches mid-sized mollies and it is good for them.

Generally, people tend to store for what dwelling plants and animals inside the fish tank. Below is a brief discussion on whether a 30-gallon tank is good for mollies or not: 

Provides space for fishes: 

Generally, a Molly requires about 10 gallons of water to swim and live comfortably. That is why if you put more than four fish in the fish tank.  

Space for pairs: 

30-gallon fish tank will be able to provide space for two pairs of mollies. Since they prefer to live in pairs so it is a great option. 

Space for more fishes: 

Generally, even after you at mollies in your 30-gallon fish tank, you can also put a few bottom swimming fish in it.

How many of these fishes can live with mollies in a 30-gallon tank? 

An aquarium or fish Tank is a type of decorative item that is seen in almost every house. People tend to store animals and water-dwelling plants in the aquarium to make their houses look more attractive.

But it is important to consider the space of the aquarium so that the fish can live comfortably. If you’re considering putting mollies in your aquarium, you need to have enough space for each of the mollies so that they can swim and live inside the fish tank.

Generally, a 30-gallon fish tank will be able to hold 4 mollies in it. Generally, mollies required 10 gallons of water to swim inside a fish tank, comfortably.

Considering that you can put three to four pieces of mollies in your aquarium. mollies are considered shoaling fish, so they like to share their space with the same type of fish.

In addition to that, adding excess fish to your aquarium will cause problems for the mollies to swim inside it. However, you can try keeping guppies, platies, or Tetras in your aquarium.

Since these fishes are small, they will not cause any problem when kept with mollies. Below is a brief discussion on what else fishes you can keep along with mollies in your 30-gallon fish tank: 

Mollies and guppies: 

If you can provide them with the proper condition, an informant, the mollies and guppies can live together inside a 30-gallon fish tank.

But you need to remember that the aquarium size must be. Appropriate for the fish to live, it should be well planted and heated. 2 mollies and 2 guppies can live together easily.

Mollies and platies: 

Mollies and Platies can live together inside a 30-gallon fish tank. Since the mollies and Platies are considered peaceful, fish for their friendly natures.

So, they will get along as a community inside the fish tank very easily with the ratio of 4:2.

Mollies and tetras:

Generally, the Tetras and the mollies have the same requirement for a fish tank. That is why if you put mollies and Tetras in a fish tank, they will live peacefully as a community.

Since both the fish require the same type of food, it will not cause them any food shortage as well and can live peacefully with the ration of 2:2.

How to set up a 30-gallon tank for molly fish?

Having an aquarium or a fish tank in your house will increase its beauty and attractiveness of it, many people tend to use water-dwelling plants and animals in their fish tanks to make them look more attractive.

However, it is important to ensure the proper environment for the fish inside the fish tank, otherwise, the fish won’t be able to live inside the aquarium. When setting up a fish tank, you need to consider a few factors before putting fish in it.

Generally, the mollies required 10 gallons of water for each of them to swim and live comfortably.

That is why you are willing to set up a 30-gallon fish tank. You need to remember that you cannot put more than four mollies inside of the aquarium. However, if you are willing to put smaller mollies, you can add another pair of Molly if you want.

Having too many mollies in the aquarium will make it crowded for them and difficult to swim. You can follow the steps to know how to set up a 30-gallon tank for molly fish: 

Maintain the fish water ratio: 

It is ideal to follow the 10 gallons per fish rule when you put mollies in your 30-gallons aquarium. It is totally fine if you put two pairs of mollies inside a 30-gallon tank. It will not cause them any type of issues to swim and live inside of it.

Add filtration: 

Since all the wastes of Molly Fish are released inside the water, it makes the water polluted and difficult to breathe in for the fish. You should add filtration to your aquarium so that the water can be clean.

Add water pump: 

When you let fishes live inside of your aquarium without a water pump, it may cause a lack of oxygen. That is why you need to put an air pump inside the aquarium so that it can provide oxygen support all the time.

What fish can live with mollies in a 30-gallon tank? 

There is a variety of fish is in that can be put to live inside a party gallon fish tank to live with mollies.

Adding more fish to your aquarium will enhance its beauty of it. If you can put fish that has the almost same type of nature as the mollies, it will help them to live peacefully with each other and make a community out of it.

Below is a brief discussion on what type of fish can live with mollies in a 30-gallon tank: 

Guppies and Tetras: 

Guppies and Tetris are considered peaceful, small fish that will easily adjust when living with mollies in a 30-gallon fish tank. 

Swordtails: 

These fishes are also known as fast movers, but they can usually live with mollies as they have some type of food habit. 

Danios: 

These fishes are also a great option to put with mollies inside a fish tank. They will live peacefully with the mollies. 

Final thoughts

Mollies are considered small-sized, peaceful fish. If that can live as a community inside a 30-gallon fish tank, each Molly requires 10 gallons of water to live and swim comfortability. So, you can put a maximum of four pieces of mollies in a 30-gallon fish tank.