i think my tiger barb is pregnant

Question
ok well today i was looking in my 20 gallon tank and one of my tiger barbs was kinda squareish in the belly and realy fat is it pregnant? When should i move it to a breeder box?

Answer
Tiger,                                                       Sorry took so long to get back to you. Had a computer problem. Your barbs are egg scatterers. You should move her now, with the male. Put them into the other tank with marbles. This way when she lays them he can fertilize them without eating them. When you see the fry hatch remove mom and dad and feed fry food or very ground up flake. Good Luck, Tina