Black Mollies

Regional drug slang for a type of amphetamine capsule
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
So at the weekend we took ourselves off to the fish shop to spend pounds 40 on three bagfuls of more exciting fish - black mollies, catfish and two comet tail goldfish.
The male guppies are about 3 centimeters long and are naturally smaller than the male black mollies. Both fishes, along with other similar aquarium pets, are viviparous; which enabled them to occupy an important niche in fish evolution.
Both the guppies and the black mollies are closely related to the swordtails, platys and mosquito fish.
Three 10 gallon aquarium tanks filled with de-chlorinated tap water were stocked with guppies and black mollies from a local supplier.