Hiya. When i bred them bred them in a small tank. Set up a sponge filter then conditioned the water etc etc. I went to the fabric shop and brought some mosquito netting and put it in the tank so it was a big net basically. This netting allowed the eggs to fall out of harms way. I used 6 zebra danios as the like small groups and put them into the net .Have the net 2-3 inches into the water. Feed them up on white worms on god flake. Hope that helps Let me know how it goes.