Trying to Identify a Pleco

[BeginnerPlecoHobbyist]

So my sister had a Bristlenose Pleco and someone gave her another species that she didn’t know, but had no clue that they could crossbreed until they suddenly had a bunch of fry. She gave the fry to me to raise because I’ve been wanting to start hobbyist fishkeeping for a while, but I do want to know what kind of plecos they are so I know their specific needs, value in fishkeeping (because there’s no way keeping 10 plecos together forever will end well), etc.
They are roughly a month old now and are just barely longer than a thumb digit and are starting to show their markings pretty strongly. All of them seem to have a ring of spots around their necks and their father seems slightly piebald, though it’s hard to tell in the picture.
When they’re a bit bigger I’ll be adding other elements to their tank, but I stayed with Catappa leaves, gravel, and a couple of hides for now so I could easier monitor their health and growth as a beginner, but some tips would certainly help.

 

[BigJfish12]

That just looks like two bristlenose to me. But another member would be able to confirm.

 

[BeginnerPlecoHobbyist]

That just looks like two bristlenose to me. But another member would be able to confirm.

Thanks. The other one doesn’t have any bristles, but I don’t know if it’s specific to certain ones or not?

 

[BigJfish12]

Only males get large bristles females have small to no bristles.

 

[BeginnerPlecoHobbyist]

Only males get large bristles females have small to no bristles.

Thank you so much. In my googling I didn’t see any dimorphism. Either way, I know I have some stunning ones I can’t wait to get bigger, so thank you for your help. ^~^

 

[DoubleDutch]

2 Bristlenoses and bristlenose babies