4 Easiest Fish Species to Keep In Your Apartment

close up photo of clownfish

Most people remember experiencing hard times while taking care of their childhood pets. Some have yet to recover from the trauma they faced after their pets died too young. If you are in this category, you might justifiably be hesitant to keep another pet soon. But, if you still want to own one, you will surely go for a pet whose care is not complicated. Fish are among pets that are very easy to take care of due to their low maintenance needs. Below is a list of the four easiest fish species to keep in your house.


You can find goldfish in various shapes, sizes, and colors. Those in an indoor aquarium or community tank can live for up to 10 years, while those in a garden pond can survive for at least 20 years if you care for them well. Goldfish are highly adaptable to different environments, given that they enjoy living and swimming in ponds and lakes, which typically have harsher conditions. 

They mainly eat pellet fish food, supplemented with certain vegetable types. Goldfish was first bred as a silver-colored carp in ancient China. A color mutation would later lead to the typical orange and yellow goldfish we know today. 

Guppy Fish  

The other fish type you can consider an excellent addition to your aquarium is the guppy fish. Also commonly referred to as rainbowfish or millionfish, guppy fish belong to the Poeciliidae family. They are a magnificent tropical freshwater species commonly found in most aquarium communities.  

Guppies are famous for their fast breeding rates and beautiful coloration, which makes them a preferred species for pets. One can only equate them to Goldfish regarding distribution and ease of keeping. 


Mollies are easy to keep since they can feed on almost anything. However, their favorite is algae and plant-based foods. These lovelies are highly adaptable to various environmental conditions and are known to reproduce quite fast. Mollies typically live for three to five years, but their lifespan might increase if you take good care of them. 

An adult molly fish measures about 4 to 4.5 inches long. However, adult Sailfin varieties can measure up to 5 to 6 inches. Roughly ten gallons of water in a tank are enough to keep mollies healthy and happy, so long as you avail some plants and hiding places. Always keep the water temperatures between 72°F and 78°F.

Betta Fish

Betta fish are suitable pets for beginners since they are moderately easy to care for and maintain in an aquarium. It is not advisable to overfeed them. You only have to ensure that your aquarium has some plants, caves, and other materials for exploration. Betta fish can recognize their owners and swim more swiftly and enthusiastically whenever their owner approaches them. The tank where they live should always have at least five or more gallons of water. Use a water conditioner to treat tap water before transferring it into the aquarium, and maintain it at a minimum temperature of 76°F. 

Bushynose Plecos

The Bushynose pleco has a flattened brown body with yellow and white spots. Its natural habitat includes the South American Amazon Basin flood plains and freshwater rivers. It is commonly referred to as the suckerfish and can pass for a smaller species of catfish. Bushynose plecos spot the signature suckerfish tentacles stemming from their heads. As freshwater fish, they easily keep the tank clean, which makes them common in fish aquariums.  

This fish species has a lifespan of five to eight years and grows to a size of five inches long. They do well in a big tank, with approximately 30 gallons of water, and are more at home in shallow waters.  


Fish are easy pets to keep, especially for a beginner. All you need is a tank with several caves, rocks, plants, and small toys to enrich the fish’s environment. Avail proper nutrition for each fish species to keep them well-nourished and healthy. Most importantly, always stay ahead by doing enough research to get new information on how to maintain your fish pets. Only then can you keep a beautiful aquarium of lively and colorful fish in your apartment.

Scroll To Top