How Many Fish Can You Keep in a 36 Gallon Tank

The number of fish you can keep in a 36-gallon tank depends on the size and species of the fish. As a general rule of thumb, you can have 1 inch of fish per gallon of water. So if you have small fish that only grow to 2 inches in size, you can have around 18 fish in a 36-gallon tank.

However, if you have larger fish that grow to 6 inches in size, you should only have around 6 fish in the tank. It’s important to consider the adult size of the fish and their compatibility when determining how many fish to keep in a tank.

How Many Fish In A 36 Gallon Tank

Choosing Fish For a 36 Gallon Aquarium

When choosing fish for a 36 gallon aquarium, it’s important to consider the fish’s size and behavior. Some common options include peaceful community fish like tetras or rasboras, bottom feeders like corydoras or loaches, and showstopper fish like angelfish or discus. Make sure to research each species’ exact requirements before adding them to your tank, including temperature range and water chemistry needs. Additionally, be mindful of not overstocking your tank to ensure a healthy living environment for your aquatic pets.

When selecting which fish to keep in your 36-gallon aquarium, there are several factors to consider. One such factor is having a variety of medium-bodied species. Cichlids from Africa or South America are ideal options for the bowfront of your aquarium. Keep in mind that a single large molly, like a Sailfin, might require a larger tank, as do smaller mollies.

It’s crucial to provide enough space for the fish to swim and move around comfortably when choosing which types of fish you want in your 36-gallon tank. Some species require more space than others and restricting their movements by keeping them in a smaller tank can cause extreme distress resulting in shorter lifespans. If you plan on having schooling fish, avoid getting just one or two; it can lead to stress and other problems for them and the rest of the aquarium inhabitants.

How Many Fish Can Fit in a 36 Gallon Tank?

The number of fish that can fit in a 36 gallon tank depends on the types of fish you want to keep and their adult size. It’s recommended to have one inch of fish per gallon of water, but it’s important to take into account the swimming behaviors and territorial tendencies of each species. Consult with a reputable aquarium store for guidance on stocking your tank appropriately.

When setting up an aquarium, it’s important to determine the appropriate number of fish that can live comfortably inside it. A 36-gallon tank can fit a variety of medium-bodied species, but it’s still essential to be mindful of the space each fish needs.

For the bowfront section, you could add African or South American cichlids or large fancy goldfish. Adding middle Pearl Danios would also be ideal. If you want to keep Corydoras catfish, they should be placed at the bottom of the tank. It’s worth noting that if you plan on keeping a molly in your tank, make sure you have at least another 3 gallons for each additional one. By keeping these tips in mind, you’ll create a healthy and comfortable environment for your fish to thrive in!

How Many Mollies Can You Have in a 36 Gallon Tank?

A good rule of thumb is to have 1 inch of adult fish per gallon of water, taking into account not only the length but also the height and swimming activity of the fish. For mollies, which are active swimmers and can grow up to 4 inches long, a 36 gallon tank could comfortably house around 9-10 adult mollies. It’s important to also consider other factors such as filtration, hiding spots, and maintenance when determining stocking levels for your aquarium.

Many people often wonder how many mollies they can keep in a 36-gallon tank. While it’s possible to have up to 5 mollies, it is recommended not to overstock your aquarium. Overcrowding can cause health and stress issues for all inhabitants, including aquatic plants and other fish species. To determine the number of mollies you can keep in a tank, you should consider the size of the tank and the type of mollies you plan to house.

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As a general rule, it’s best to aim for a tank that is at least three times larger than the intended size of your molly’s habitat. This ensures that the environment remains stable and reduces any changes in water quality that may harm or kill your mollies.

In terms of proper accommodation, adult mollies require a planted tank with plenty of vegetation such as java ferns or Anubis. The substrate should also include algae since some types of floating plants encourage breeding outside of a designated breeding tank. Keep in mind that male mollies tend to be aggressive toward one another so having one male per habitat will reduce hostility among them.

Can Angelfish Live in 36 Gallon Tanks?

Yes, angelfish can live in a 36-gallon tank. However, it is important to note that angelfish are known to grow quite large, so it’s essential to keep the tank well-maintained and take proper care of them. Additionally, remember not to overstock the aquarium as they require plenty of space and good water quality to thrive.

Angelfish are a popular choice for aquarium owners, but the question often arises whether they can thrive in smaller tanks like a 36-gallon aquarium. While it is possible to keep angelfish in such a tank, owners need to consider the available space and other factors that can affect their survival.

Angelfish require adequate space, and keeping two or three of them in a small tank like a 36-gallon would not be appropriate for their well-being. Furthermore, angelfish prefer to be paired with other angelfish like Neon Tetras, so it may not be ideal to have three fish in one tank. The recommended size of an aquarium for angelfish is one inch taller than the fish itself, though this rule does not account for decorations or gravel added to the tank.

Owners must also ensure that there is enough room for other species of fish in the same tank. For food, angelfish can be fed either live or frozen foods containing protein as they can survive on both vegetarian and non-vegetarian diets. Angelfish also grow quite large (about six inches on average) and are known to exhibit aggression towards others if kept with small animals. As such, keeping angelfish in larger tanks with plenty of space and decorations allows them to thrive properly.

The Best Fish For a 30-Gallon Aquarium

Some of the best fish for a 30-gallon aquarium include:

– Guppies

– Neon tetras

– Dwarf corydoras catfish

– Cherry barbs

– Honey gouramis

It’s important to research each fish and its specific needs before adding them to your tank. Also, ensure you don’t overstock your aquarium and maintain good water quality through regular maintenance routines.

If you want to keep fish in a 30-gallon aquarium, it’s important to choose species that will thrive in this environment. While there are many options available, some of the best species include neon tetras, otocinclus fish, platys, bristle nose plecos, mollies, angelfish, peacock gudgeons, and killifish.

Neon tetras are always a popular choice because they look fantastic when they swim together. They also don’t take up much space in your tank. Otocinclus fish are excellent bottom-dwellers that love to explore their surroundings. They are slender and very colorful with an orange-yellow stripe running down their body.

Platys can be kept in groups without fighting and enjoy alone time as humans do. Brisltenose plecos, mollies, and angelfish are all peaceful species that require a 30-gallon aquarium for optimal growth.

How Many Gallons Does Molly Need?

The amount of gallons a Molly fish needs depends on the number of fish and their size. A good rule of thumb is to provide 2-3 gallons per inch of fish. For example, if you have four Mollies that are each 2 inches long, you will need at least an 8-gallon tank. However, it’s always better to give your fish more space than necessary to keep them healthy and happy.

If you’re planning to have mollies in your aquarium, it is important to consider the amount of space they need. A single molly requires at least 25 gallons of aquarium space, as well as up to four more gallons depending on the species and tank setup. It is recommended to have a minimum of four mollies in a tank, with multiple shoals needing around 45 gallons. If you plan on having multiple mollies, it is important to consider their social behavior and provide enough space for them to swim comfortably.

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Aside from their required space, it’s also vital to keep in mind that mollies can coexist with other fish species. Providing them with a variety of food options such as fish food pellets or blanched vegetables can help maintain their diet. However, when calculating how many mollies can fit in your aquarium, keep in mind that the ratio rule is one inch per gallon of aquarium space; though this rule is only a general guideline and factors like the size of other fish must be considered too.

Fish Suggestions For My New 36 Gallon Bow Front Aquarium

Some fish recommendations for your new 36 gallon bow front aquarium include neon tetras, cherry barbs, honey gouramis, and dwarf corydoras. These fish are all relatively small and peaceful, making them great for community tanks. It’s important to research the individual needs of each species before adding them to ensure a healthy and harmonious environment for all.

If you’re looking for suggestions for which fish to keep in your new 36 gallon bow front aquarium, there are a variety of options available. While clownfish and discus make great tank mates, it’s important to note that they may not always get along. Discus are known as the “kings of freshwater fish” and require good water conditions and plenty of food. Multiple filters or large canister filters and weekly water changes are necessary, and they prefer softer water. Jack Dempsey cichlids would also be a great choice if you want a bigger fish, but they should be kept in a school to ensure their peaceful coexistence with other large tank mates.

For a smaller school, BN plecos or Bolivian rams would look great in the tank. Adding a few stories and BN plecos could also enhance its appearance. Beginner-friendly options like tetras or platies are excellent choices too since they adapt well within their groups, especially when bred separately by gender. For more inspiration and suggestions on what types of fish will thrive best in your new tank, try browsing the “your tanks” section to see what others have recommended.”

How Many Tiger Barbs Can I Put in a 36 Gallon Tank?

Determining how many tiger barbs can be kept in a 36-gallon aquarium is an important consideration for any aquarist. While the answer to this question isn’t straightforward and depends on various factors such as the size of the tank, it’s generally recommended to keep them in groups of up to eight if you plan to have multiple species, or small groups if you plan to keep only one species in your tank.

Apart from their numbers, providing a suitable diet is also essential for the well-being of tiger barbs. While they’ll eat pretty much anything, they prefer live food such as bloodworms, brine shrimp, and daphnia. Frozen foods are also acceptable but should contain spirulina as the primary ingredient.

Although tiger barbs typically get along with other fish species, improper groupings or pairing them with long-finned fish like clown loaches can cause trouble. Consistent feeding and creating opportunities for spawning are crucial aspects of keeping your tiger barbs healthy and happy.

Ultimately, by following proper stocking guidelines that take into account factors like tank size and social grouping preference, you can successfully keep tiger barbs in your 36-gallon aquarium while giving them a chance to thrive in their environment.

What Fish Can Go in a 36 Gallon Aquarium?

Some great fish species to consider for a 36 gallon aquarium include angelfish, tetras, guppies, platies, mollies, swordtails, danios, and corydoras catfish. Be sure to research the specific needs and care requirements of any fish you plan to add to your aquarium beforehand.

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Choosing the right fish to keep in your aquarium can be overwhelming but critical to their health and safety. While options are many, you must know the suitable species that can survive in a 36-gallon aquarium without overcrowding. It is not advisable to keep Cichlids as they require a larger tank for best results.

A suitable option would be adding easy-to-maintain fish like swordtails, platys or Kuhli loaches which are beginner-friendly and popular. You can house approximately twenty nano fish and fifteen mature ones in such an aquarium. A dozen or more medium-sized fish will also fit comfortably in it. Meanwhile, African and South American cichlids with medium-sized bodies will do fine as well.

Fish like mollies are beautiful but tend to be aggressive when crowded, so add only up to two of them in your tank. However, larger aggressive fish must be kept alone; otherwise, there might not be enough space for all the other species living happily in the aquarium. It’s crucial always to research before making any additions to your tank to guarantee that every fish thrives!

How Many Fish to Keep in a 36 Gallon Tank

Choosing the right number and type of fish is crucial when setting up a 36 gallon tank. Fish need plenty of space to move around, especially schooling species. Be mindful not to overcrowd the tank as this can cause stress and harm to the fish, which can lead to shortened lifespans and even death. It is important to choose the right species of fish that are appropriate for the tank size and compatibility with each other. For beginners, it’s recommended to start with simpler species like swordtails or platys, as they are easy to care for. Ensure that you keep them in groups of five or more for proper social interaction.

It’s important to keep in mind the pH level of the water along with the individual needs of different fish species. The number of cichlids that can live in a 36 gallon tank depends on their breed and size; generally, two gallons of water per inch of body length will suffice but larger cichlids may require three to four gallons per inch. It is suggested not to exceed 10 cichlids unless you have a powerful filter system and regularly change the water for their safety and well-being.

How Many Fish in a 36 Gallon Tank?

Determining how many fish to put in a 36 gallon tank can be tricky, but there are some guidelines that can help. While the old “one inch of water per gallon” rule doesn’t always apply, it’s still important to consider the amount of space your fish will need.

A good rule of thumb is to provide one inch of space per fish. However, schools or active species may require more space than others. If you plan to keep multiple species of fish, you should do so in groups of at least five to prevent stress and shorter lifespans for the other fish.

For medium-bodied species, it’s recommended that you have no more than four in a twenty-gallon tank. As larger fish have wider bodies, they will require double the amount of space accordingly. It’s important to note that these rules only apply to adult fish, and if you’re unsure about how many fish your tank can accommodate, consulting a fish expert can be helpful. Additionally, monitoring water temperature daily and changing out the water regularly are important aspects of maintaining a healthy environment for your aquatic pets.


The number of fish that you can put in a 36-gallon tank depends on several factors such as the size and type of fish, their compatibility with each other, and their filtration and oxygenation needs. It is important to do your research before choosing your fish and to not overstock the tank in order to maintain good water quality and promote healthy fish.

By carefully considering these factors, you can create a beautiful and thriving aquatic environment for your fish to live in.