I am not sure if my question was understood correctly.....clarification: My false julii cory's (scientific name is Callichthyidae) were spawning at the time I post this question originally and I wanted to know how long does the spawning process last...but of course I have learned now through my personal experience with them yesterday...
@Bettamax....real julii cory's are very rare...research the difference but here is a link to get you started
False Julii Cory Catfish