there is one method I have found quite sucessful and that can be found on my website http://www.danios.odd-fish.net/DANIO...gBreeding.html
since the site went live many people have told me of another method that works more often than not. and that method is as follows
perform a gravel vac into a bucket.
place a heater into the bucket and set at 26c.
wait 24-36 hrs. if eggs were present you should see
some fry clinging to the bucket walls, if not
discard and try on the next gravel vac.
if fry are found transfer them (via a turkey baster) to a raising tank
around 10-15G and raise the temp to 28c.
feed infusoria for the first week and then crushed flake and or BBS there after.