Like already stated, some photos of them could make things more clear...
If the anal fin is still V-shaped but pointy edged at the tip, it's a male for sure. Also when the first finrays of the anal fin is thickened while it's still V-shaped, it will also be a male. Another way to tell is when the front of the anal fin is straight, it will be a male. If the front of the anal fin is a slightly rounded, it's female.