do they fit any species

could you rephrase that, didnt understand what you were asking

If you're asking "Can they be housed together",my initial response is no.Only because I tried that with a male Blue Gouramis,and all he did was attack their antenna's.

yes thats it thank u what about apple snails what can they go with

Tell me what size tank you have. Do you know what kind of Apple Snail you have?Brigs grow to be the size of a Walnut,Cana's for instance can get as big as a Tennis Ball,so type of snail/size of tank is kind of needed to figure out if you even have the room for fish.