(1) He's lived happily for the past four months with a platy and two neon tetras in a five gallon aquarium.(2) Coexistence of the two types of sex-determining mechanisms in the same species is unusual and has been reported only in the platy fish, housefly, and midge.(3) Prompted by my concern for Linda's u2018tough-loveu2019 hardened goldfish and platies , I was given Nigel as an outlet for my protective zeal.(4) Examples include the jewelfish and spotted tilapia; and livebearers, such as swordtails, platies and mollies, and armored catfishes.(5) In the swordless platies , females also prefer males with artificially attached swords over conspecific males.