English terms for types or instances of four-eyed fish, guppies, killifish, mollies, mummichogs, platies, swordtails, topminnows and other fish in the order Cyprinodontiformes.

NOTE: This is a set category. It should contain terms for toothcarps, not merely terms related to toothcarps. It may contain more general terms (e.g. types of toothcarps) or more specific terms (e.g. names of specific toothcarps), although there may be related categories specifically for these types of terms.