It’s difficult to determine which fish is the “smartest” in an aquarium because intelligence is a complex and multifaceted trait that is difficult to quantify in fish. However, there are some fish species that are known for their problem-solving abilities, social intelligence, and ability to learn and remember.
One fish species that is often cited as being particularly intelligent is the Betta fish (Betta splendens). Betta fish have been shown to have an excellent memory and can be trained to perform certain behaviors and respond to certain stimuli. They are also highly interactive with their environment and can recognize their owners.
Other fish species that are considered intelligent and trainable include:
- Cichlids (such as Apistogramma and Pelvicachromis species)
- Guppies (Poecilia reticulata)
- Goldfish (Carassius auratus)
- Discus fish (Symphysodon spp.)
- Oscars (Astronotus ocellatus)
- Archerfish (Toxotes spp.)
- Siamese fighting fish (Betta splendens)
Keep in mind that intelligence can vary widely among individual fish, even within the same species. Additionally, the intelligence of a fish can be influenced by its environment, diet, and other factors.
