Marine Fish for a Home Aquarium​

There are thousands of species of fish in the ocean many of which have survived for millions of years. They have adapted to changing conditions, developing effective defense systems and learning how to hide from natural predators.

Moving Isn’t Easy, Even for Fish

When fish are moved from their ocean home to an aquarium, the rules change considerably. Their ability to hide is diminished leaving them vulnerable to predator fish that may be in the aquarium with them. Furthermore, the ocean provides an endless supply of food. If they can’t find sustenance in one place, the fish can simply swim to a better location. In the aquarium, swimming space is restricted, and there will be more competition for the food you provide. 
So, you must do your research and pay careful attention to the nature and needs of the fish you select for your home aquarium.

Some Basics to Consider

You shouldn’t place large predatory fish in your aquarium with smaller fish who will become their food supply.
There are territorial issues which you can overcome if you put all your fish into the aquarium at the same time.
It will be important to understand the mating and hatching habits of fish species as in some cases it will cause conflict in your aquarium.

Royal Dottyback


Tangs are fast and curious fish as well as one of the most popular species for home aquariums but read and find out if they’re right for you.

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gil smolinski - cory catfish profile

Cory Catfish

Cory Catfish are popular bottom-dwelling fish who live up to their dazzling reputations in all sorts of ways. They are super friendly and so peaceful that they won’t even bother the smallest creature in the tank.

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Lawnmower Blenny


Size: Up to around 10 centimeters Lifespan: Two to four years Temperament: Omnivore Diet: Carnivore Care Level: Moderate to easy Lawnmower Blenny Known to be

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Size: Five to nine centimeters Lifespan: One to two years Temperament: Peaceful Diet: Carnivore Care Level: Easy Cardinalfish are popular for home aquariums because they

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White male Molly


Size: Up to around six centimeters Lifespan: Up to five years Temperament: Very peaceful and social Diet: Omnivore Care Level: Moderate Mollies come in a

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Size: Up to six centimeters Lifespan: More than five years Temperament: Prone to some aggression Diet: Omnivore Care Level: Moderate to easy Damselfish are feisty

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Size: Around seven centimeters Lifespan: Three to six years Temperament: Peaceful Diet: Omnivore Care Level: Easy The movie Finding Nemo has made this type of

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