Hello from Newcastle NSW

Hello everyone. I'm a uni student from Newcastle NSW. I've been interested in fish keeping for quite some time now and have previously kept bristlenose in a large community tank. We have since gotten rid of that tank and now I'm left with only 2 smaller ones in my room.
I currently have 8 bristlenose. 4 peppermints around 4-5cm in 1 tank and in the other tank i have an 8cm albino male, a 7.5cm common female, a 6.5-7cm albino that im 90% sure is a female, and a 6.5-7cm common that i think is a female but I'm not sure. My aim is to breed the larger bristlenose as they are in a tank all to themselves. My fish are all from different bloodlines as well. the smaller common is from queensland, the larger common is from a lfs, the albino male is from a breeder in sydney, and the albino female is from a different lfs.
I'm really eager to give breeding bristlenose a shot and have been reading about it alot. I would be more than happy to recieve any advice from you kind people of bristlenose world. I'll try and post some picture of my bristlenose when i get some good pics .
Thanks Bryce

This is my 7.5cm female common i got yesterday from the lfs.


My 8cm albino male i received yesterday from sydney


I'll try and get some pics of my other 2 but at the moment they are hiding.

This is my Albino which im pretty sure is a female. Shes around 7-7.5cm.




And here is some more photos of my 7.5cm common that i got yesterday.



Here are some photos of my 7cm common which im not sure whether it is a male or female I'll try get some better pics when he/she comes to the front of the tank.






And some more pics of my New albino male from sydney which i got yesterday.

Wow great pics and welcome to Bristlenose world!

welcome to bristlenose world

Could someone please tell me if my smaller common and albino are male or female?