Fish Species Starting with K
Browse all aquarium fish species with scientific names beginning with "K". Each profile includes care requirements, water parameters, tank size recommendations, and compatibility information for freshwater, marine, and brackish species.
The letter 'K' in our species index holds the potential for some fascinating aquarium inhabitants. Notable species include the Kribensis (Pelvicachromis pulcher), a popular community fish known for its vibrant colors, and the Killifish (various genera), which are often sought after for their unique breeding behaviors. While our current database does not include species starting with 'K', this letter showcases a diverse range of captivating fish, from peaceful community dwellers to more specialized varieties.
2 species found
Rainford's goby
Koumansetta rainfordi
This little goby is a tiny striped hoverer that spends its day scooting between rock crevices and pecking at the sand and micro-stuff on the rocks. In the right setup its a super chill, reef-safe character fish, but the big trick is keeping it well-fed in a mature tank so it doesnt slowly waste away.
Glass catfish
Kryptopterus vitreolus
This is the truly transparent "glass" catfish from Thailand - you can literally see the spine and organs when its happy and settled in. The big trick is keeping them in a proper group and giving them calmer, dimmer conditions; once they feel secure, they cruise around together and look unreal in the water column.