flame fish vs flamefish

flame fish and flamefish both are nouns.

Word	Noun	Adjective	Verb	Adverb
flame fish	Yes	No	No	No
flamefish	Yes	No	No	No

As nouns, flame fish and flamefish are synonyms defined as:

flame fish and flamefish: a cardinalfish found in tropical Atlantic coastal waters

Other synonyms of flame fish include Apogon maculatus.

flame fish (noun)	flamefish (noun)
a cardinalfish found in tropical Atlantic coastal waters	a cardinalfish found in tropical Atlantic coastal waters