how old are you and what grade level is this going to be?
Depending on the topic, you might want to go broad and cover all cichlids, or specific and cover either 1 region ie. south american, or even 1 genus like apistogramma. You may even go so far as to cover just 1 species. And there is a lot to cover other than the fish themselves, food, spawning, housing, evolution, etc.
The library section here is a good place to start looking for information, but im not too sure how schools handle information from the internet, in my days, those were not considered valid sources. Let us know more specifically what you need to talk about, and im sure we can help point you in the right direction.
Depending on the topic, you might want to go broad and cover all cichlids, or specific and cover either 1 region ie. south american, or even 1 genus like apistogramma. You may even go so far as to cover just 1 species. And there is a lot to cover other than the fish themselves, food, spawning, housing, evolution, etc.
The library section here is a good place to start looking for information, but im not too sure how schools handle information from the internet, in my days, those were not considered valid sources. Let us know more specifically what you need to talk about, and im sure we can help point you in the right direction.