I am having the same problem!!!
Here is some suggestions that I got to help him become interested:
1. Give them time
2. Release the female and give it a bit
3. Feed Often
4. Take the male out of the tank for a few days and re-release him
5. Add bubbles from another male's nest
6. Show him another male (get that testosterone build up going!)
7. Take the female completely out of the tank for a few days
8. Water change
9. Or choose another couple?
also, try adding Amazon Rain by Tropical Science or Blackwater extract.
Hope it helps!
Here is some suggestions that I got to help him become interested:
1. Give them time
2. Release the female and give it a bit
3. Feed Often
4. Take the male out of the tank for a few days and re-release him
5. Add bubbles from another male's nest
6. Show him another male (get that testosterone build up going!)
7. Take the female completely out of the tank for a few days
8. Water change
9. Or choose another couple?
also, try adding Amazon Rain by Tropical Science or Blackwater extract.
Hope it helps!