I want to spawn zebrafish in my office facility I tried the 12 hour light and 10 hour dark period, I tried to put one male with 2 females, but I didn't get result . The temperature is 27 degree centigrade . I am feeding them Artemia nauplii. I was thinking may be the spawning ground is not effective and they eat their eggs. Could anybody help to make spawning ground for the aquarium.