Hey ggMing,

Don't worry. It'll succeed soon enough.....

Tried and tested.

Trisfac - 4th spawn only successful - fries about 1 month old (3rd spawn female wallop the wigglers and murdered the male after 4th spawn)
Bitaeniata - 1st spawn successful - fries about 1 month old
Inka 50 - 1st spawn - hatched, saw wigglers, saw free swimming fries but now missing. The female is too timid to parade them around like the 1st 2 spp and always hiding somewhere. So will wait patiently to confirm their survival.....