cichlid vs bolti

cichlid and bolti both are nouns.

Word	Noun	Adjective	Verb	Adverb
cichlid	Yes	No	No	No
bolti	Yes	No	No	No

As nouns, bolti is a hyponym of cichlid; that is, bolti is a word with a more specific, narrower meaning than cichlid:

cichlid: freshwater fishes of tropical America and Africa and Asia similar to American sunfishes; some are food fishes; many small ones are popular in aquariums
bolti: important food fish of the Nile and other rivers of Africa and Asia Minor

Other hyponyms of cichlid include Tilapia nilotica.

cichlid (noun)	bolti (noun)
freshwater fishes of tropical America and Africa and Asia similar to American sunfishes; some are food fishes; many small ones are popular in aquariums	important food fish of the Nile and other rivers of Africa and Asia Minor