I have had several attempted spawns, one successful, however the heater failed and i lost the fry.
what kind of set up did you have? its very irresponsible to spawn bettas if you're not ready to care for the fry, because males and females often get pretty trashed during spawning, and a lot of breeders loose their best stock males this way (usually you want to have 2 females per male... spawn sisters)
my setup included a 10 gallon tank with a styrofoam cup cut in half and taped at the waterline for the male to build his bubblenest under, a heater with the tank at a constant 80*, and a sponge filter set on very low so as to create almost no current. I had 3 live plants in there that had been under lights for a few days to get the infusoria going... the tank was also fully cycled. no substrate on the bottom of the tank so the male could find the eggs and fry easily enough before they became free swimming and i removed him.
what kind of pairs do you have right now? just veil tail petshop quality fish? luckily they are THE easiest to spawn. my attempted spawns were with a super delta male to a spawn sister... the one that worked was a high quality veil tail crossed to a super delta female. the fry reached 3 weeks and the largest 2 were JUST showing their irridescence (turqouise, like both parents) and the power went out overnight and somehow when it came back on it made the heater go crazy and pretty much boil the fry
this was over christmas break.
i may yet attempt one more spawning over spring break between a yellow (non red) butterfly cellophane veil tail and a triband turqouise/maroon/opaque white veil tail.
if you need any help with setups or betta information, email me. [email protected]
edit: you can also refer to my webpage for pictures of my fish and some good basic betta care