Hello. I have researched on how to care/breed Crowntail Beta fish. I currently own a male crowntail and I really want to try the breeding. Here is what I know to do.
You place both betas in a 10-20 gallon tack -with divider- and slowly introduce the female to the male -to prevent one being hurt badly- You should have a stiro fom cup with a small whole so the male can make a bubblenest. When the male has produced a large enough bubblenest you let them spawn for 10-20 hours. Do you seperate them after to feed or while spawning? Once the eggs are in the bubblenest you seperate the female but leave the male to do its natural thing. -blow back the fallen eggs. And once the fry have hatched and are free swiming -5-7 days- you seperate the male.
You can feed the fry a powder like food found in stores, baby shrimp....
Their water should be heated to 68 degrees
they should have live plants for hiding places and to eat on.
3 1/2 months later you should be able to tell them apart from male or female. You need to seperate the males-diff 1 gallon tanks, but the females can live together in a soroity. You can also start feeding them a regular diet. -bloodworms, and provided beta pelets-
hope this is correct