Answer: guppies

AnswerCrossword Clue
GUPPIESPopular aquarium denizens
GUPPIESAquarium fish
GUPPIESRainbow fish
GUPPIESTropical fish.
GUPPIESPet fish.
GUPPIESRainbow fishes
guppiesGUPPY, a small tropical fish
guppiesA homosexual yuppie