Cloud Minnow Breeding?

Fish4848
Member
Hi, I have a 10 gallon with 4 cloud minnows, 2 guppies, and a female betta. Recently, I have noticed cloud minnows doing this weird thing where they stick their fins straight up and chase another one. I don’t know how to distinguish male from female cloud minnows, so I can’t tell who is chasing who. Is this them trying to breed?
 
SM1199
Member
Chasing is usually males establishing dominance amongst themselves, though fish could certainly be breeding, but this isn't the actual act. WCMMs breed very easily with no special accommodations. They are probably already breeding, but your betta is likely snacking on any eggs or fry she finds.
 
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