Help me identify these fish

[Emo3220]

Hi there my friend had gave me these fish for my fish tank. I do not know what they are and I am needing help in identifying them. Can anyone tell me what they are?

 

[CassCats]

Siamese algae eaters. Do better in a shoal of 6, and need a 55g or larger as they get fairly good sized.

 

[Emo3220]

Siamese algae eaters. Do better in a shoal of 6, and need a 55g or larger as they get fairly good sized.

Do you if they are males and a female?

 

[CassCats]

Top one looks like may be female as its quite chunky.

 

[Emo3220]

Top one looks like may be female as its quite chunky.

Oh thank you!!!