Electric organs in electric fish are not functional at birth. These organs develop later when the fish activate a sodium channel gene in specific muscle cells. This genetic change allows them to produce electric discharges for communication and navigation. Structure and function of electric organs vary among Gymnotiform species. The evolution of electric organs in … Read more

Eels are mainly marine fish, but some live in freshwater. They are catadromous species, spending most of their lives in freshwater before migrating to the ocean to breed. Eels thrive in rivers, lakes, and ponds. Due to their adaptability, they can also be suitable for aquariums while serving as an Indigenous food source. Eels thrive … Read more

Eels are a type of fish in the order Anguilliformes. They have snake-like, elongated bodies and live in both freshwater and saltwater. There are over 800 species of eels. They are primarily carnivorous and have gills and one fin. This anatomy makes eels distinct fish, not reptiles. Another defining characteristic is their lifecycle. Eels undergo … Read more

Earthworms are excellent live bait for ice fishing, attracting fish species such as perch, bass, and trout. Their movement draws fish in, making them a favorite among anglers. However, be careful, as they can die quickly on the ice. Compared to wax worms, earthworms are effective for catching a variety of fish. When using earthworms … Read more

Dwarf puffer fish, or pea puffers and pygmy puffers, are pure freshwater fish. They are endemic to Kerala and southern Karnataka. These small fish reach a maximum size of 1 inch. Unlike many puffers, they thrive in freshwater. Their bright colors make them popular in aquariums, where they need plenty of cover. To maintain a … Read more

Dwarf Gouramis are freshwater fish from the Belontidae family. They are peaceful and thrive in community tanks with plants. As labyrinth fish, they need access to the water’s surface. These omnivores require a varied diet for good nutrition. With proper care, they can live 2-4 years and display vibrant colors, especially the Powder Blue Dwarf … Read more

The dwarf gourami (Trichogaster lalius) is a small, vibrant freshwater fish suited for community tanks. They are peaceful and prefer heavily vegetated waters. With easy care, they can live 2-4 years. Their common names include Blue Gourami and Sunset Gourami, making them a popular choice among aquarium enthusiasts. To care for Dwarf Gourami, maintain a … Read more

Drum fish are bottom feeders. They search for food near the bottom of their habitat. Their diet includes small fish, crustaceans, and insects. They have downward-facing mouths to crush prey like mollusks and crabs. Freshwater drum and black drum thrive in different aquatic environments, adapting their feeding habits to the surroundings. Their feeding strategy is … Read more

Drain fly larvae can harm fish. They can cause gill nipping and may carry parasites or diseases. Although most fish avoid them, some might eat them. To protect fish safety, maintain a clean aquarium, especially by cleaning filters and removing decaying organic matter. Proper aquarium care helps prevent problems with these larvae. In addition, drain … Read more

Dragonets are not freshwater fish; they are marine fish from the family Callionymidae. They live in coral reefs in the Indo-Pacific. Mandarin dragonets are a popular species in aquariums. They need a tank of at least 29 gallons with live rock and sand to thrive. Their diet consists mainly of small invertebrates. Dragonets require specific … Read more