A List of 10 Highly Intelligent and Interactive Ornamental Fish

Anyone who likes keeping fish knows that once a fish gets familiar with you, most of them will show interactivity. The most basic interaction is getting excited when a person approaches, wiggling left and right to beg for food.

However, the level of interactivity we’re talking about today is a bit higher. Different fish species have their own personality traits and intelligence. For example, a Guppy can be interactive, but a Guppy’s interactivity is limited to begging for food; it’s not as advanced as that of a Flowerhorn Cichlid.

It’s truly rewarding to raise a fish that is smart, interactive, and has high intelligence. Today, I’ll summarize 10 types of smart, highly interactive fish for you. Hope you like it.

Recommendations for Highly Interactive Ornamental Fish

Flowerhorn Cichlid: The ‘Clingy Pet’ of the Fish World, Recognizes its Owner and Interacts

The more you raise a Flowerhorn Cichlid, the more you’ll love it. It’s particularly good at recognizing its owner. It plays with you every day, just like a small dog.

The interactivity of a Flowerhorn isn’t just about begging for food. Flowerhorns genuinely enjoy playing. For instance, if you put a red toy inside, the Flowerhorn will curiously observe it and then play with it. If you squirt water at the tank with a water gun, the Flowerhorn will play along. It has its own little clever thoughts. It can distinguish who its owner is.

Flowerhorns have a strong sense of territory, so one fish per tank is enough, or else it will bite everything. But it is exceptionally tolerant of its owner and even likes it when the owner pets its head. Its pink and pouty look is extremely cute.

Oscar Fish: A Gluttonous and Simple-minded Fish, Interaction Relies Entirely on its ‘Foodie Soul’

The Oscar Fish is a notorious “foodie,” but this gluttony is precisely what becomes the bond for interaction. As soon as it hears your footsteps approaching the tank, the Oscar will open its mouth wide, waiting to be fed.

Oscars can grow to over 30 cm (11.8 inches) and are quite fierce. If you slide your finger along the tank wall, the Oscar will “chase” it. Be careful not to get bitten by the Oscar; it hurts a lot. However, after raising one for a long time and once it recognizes its owner, it’s very therapeutic.

Parrot Fish: Schooling for Livelier Interaction

The Blood Parrot Cichlid is naturally born with a “smiling face” and has a personality so lively it’s almost a “chatterbox“(a term for people who talk a lot). Parrot Fish love to move in groups. When they see their owner, they will collectively swim to the surface, their mouths opening and closing as if “saying hello.”

Parrot Fish come in many colorations. The Blood Parrot is entirely red, which is very festive. A school of Parrot Fish offers even stronger interaction. A small gesture from you can trigger a “commotion” among the Parrot Fish, making it as lively as a small party.

Snakehead Fish

The interactivity of Snakehead Fish is among the highest for ornamental fish, and they are especially responsive to their owners. Once familiar with the environment and its owner, it will proactively approach the tank wall, even following hands and taking food from hand, and rubbing its body against the tank to signal for interaction.

When excited, a Snakehead will also display a graceful, unfurled swimming posture. Its intelligence and proactiveness during interaction are strong, making it a favored “interactive contender” for many aquarists (fish keeping enthusiasts).

Giant Gourami: The Gentle ‘Big Eater’, Interaction Built on ‘Trust’

The Giant Gourami has a gentle personality like a “Golden Retriever” (referring to the gentle dog breed). It can grow up to 60 cm (23.6 inches) but shows no aggression towards its owner. After keeping it for a long time, you can feed it directly by hand. The Giant Gourami will carefully nibble the food from your fingertips, as if afraid to hurt you. This sense of trust will melt your heart instantly.

The Giant Gourami is very sensitive to environmental changes. When you redecorate the tank, the Giant Gourami will curiously “watch” from the side. If you sit and work in front of the tank, the Giant Gourami will stay quietly opposite you, like a well-behaved “companion.” The interaction isn’t intense, but it’s filled with a steady sense of warmth.

Pufferfish: The ‘King of Expressions’ Itself, Interaction with a Natural Comedic Flair

Pufferfish (such as the Mbu Puffer and Fahaka Puffer) are the “kings of expressions” in the fish world. Their round bodies paired with agile eyes create a comedic effect during interaction.

A Pufferfish’s eyes will roll around, and its teeth are hard. Pufferfish are smart and have a curious nature, and they can become very friendly pets. However, they have a strong sense of territory, so keeping just one is enough. They can grow very large and will puff up into a ball when angry.

Their ability to recognize their owner is top-notch, and their interactive ability is quite strong.

Cichlid: ‘Family-oriented Fanatic’, Interaction Hides a ‘Sense of Responsibility’

There are too many types of African Cichlids (cichlid species from the three great African lakes: Lake Malawi, Lake Tanganyika, and Lake Victoria), but they are all quite smart. Although they have a strong sense of territory, they are exceptionally friendly to their owners.

Assorted cichlids cost a few yuan each, so beginners can try raising them. They are very fun fish. Don’t be fooled by their small size; assorted cichlids are super fierce. Fish of a similar size can become a delicious meal for them, and they love to fight.

Thai Lionhead Goldfish

The Thai Lionhead (Thai Lionhead Goldfish) is naturally quite gentle. With patient guidance, it can slowly change from “hiding from people” to “swimming closer to people,” but its interaction intensity is still relatively mild, a bit weaker than the highly interactive ones mentioned earlier.

But Thai Lionhead Goldfish are really cute, like Ponyo (a character from the Studio Ghibli film *Ponyo on the Cliff by the Sea*), just so adorable. After keeping one for a long time, it will swim over upon seeing its owner, which is very therapeutic.

Koi Carp

During feeding, Koi Carp will proactively gather and follow hands. When you approach the tank at other times, the Koi will also swim over curiously. The interaction is lively and regular.

Koi have a varied diet and a high interest in food. They are also called “Koi pigs” because they always seem insatiable. Long-term, fixed-time feeding will cause Koi to form a conditioned reflex where “humans equal food source,” leading them to proactively approach and follow hands.

The larger a Koi gets, the more intelligent it becomes, and they come in many beautiful colors. Koi are also a type of good luck fish, but they can grow very large and require a large container to be raised in.

Angelfish: The Elegant ‘Dancer’

The Angelfish (Pterophyllum) has a body as elegant as a “crane in the water,” and its sense of interaction is hidden in subtle details. When you approach, Angelfish won’t swarm you; instead, they maintain a certain distance, gently flapping their pectoral fins as if “waving.”

Angelfish are very cute when they’re young, but this thing can actually grow quite large, so be sure to provide a bigger container. Also, Angelfish are not easy to raise, so beginners shouldn’t try them lightly.

Writing this, I realize that except for the Thai Lionhead and Koi, all the interactive fish introduced today seem to be quite fierce. After all, once a fish has intelligence, it can’t tolerate rivals; every fish it sees is a competitor for food.

Raising them from a young age will make the experience truly maxed out. Remember to prepare a larger fish tank; a smart noggin doesn’t like to be constrained. What’s the most interactive fish you’ve ever raised? Feel free to discuss and share.