Provide 2 separate caves for the males and put them in two different places in the tank. I like to keep caves kinda hidden with plants nearby but with the entrance facing outward so I can see what's going on in there. What happened with me with 2 males and several females in my 75G planted tank......if you don't know, the female bristlenoses pick the male they want to breed with.....well all my females only wanted the one male. So with 6 females, I needed to divide and separate the group so the other guy would have some girlfriends.
