Fish Species Starting with W
Browse all aquarium fish species with scientific names beginning with "W". Each profile includes care requirements, water parameters, tank size recommendations, and compatibility information for freshwater, marine, and brackish species.
Welcome to the 'W' species index page, a section dedicated to the diverse world of aquarium fish whose scientific names start with this letter. Here, you can discover notable species such as the Warrior Tetra (Tanichthys albonubes) and the Whitetailed Wrasse (Coris aygula), which showcase a range of behaviors and care requirements. Whether you're interested in vibrant community fish or unique specimens, this index offers valuable insights for every aquarium enthusiast.
3 species found
Freshwater shark
Wallago attu
Wallago attu is one of those true monster sheatfish - a long, compressed catfish with a ridiculously huge, deeply cleft mouth that makes it an absolute vacuum cleaner for anything it can catch. In the wild it hangs around deep, slower water over mud or silt and spends a lot of time tucked into holes and cover. In aquariums its main care requirement is simple but brutal: space (think indoor pond), because it gets enormous and anything smaller than it is food.
Whitebanded sharpnose wrasse
Wetmorella albofasciata
This is one of those tiny, cryptic wrasses that spends a lot of time weaving through rockwork and poking into little cracks like it is on a constant scavenger hunt. The big eyes and sharp snout give it a weird-cute "mini predator" look, and it really shines in a peaceful reef where it feels safe enough to come out and cruise.
Sharpnose wrasse
Wetmorella nigropinnata
This is one of those tiny, sneaky reef wrasses that lives in the rockwork - you'll see it poking its little sharp snout into cracks hunting micro-prey. Super peaceful and shy, but once it settles in, its yellow bars and twitchy 'possum wrasse' vibes are seriously addictive to watch.