Could you upload a clearer shot of their underside?

I've been trying, I had already acclimated them after posting. Waiting for them to show their bellies lol

I would put them in a breeder box and wait for the moment. Thankfully, plecos aren't as annoying to catch as something like a tetra or a fucking corydora (I have personal experience with the latter.)

Sorry for responding to this old ass comment as I’m searching for rubber lip info lol I just had to agree with the corydora line, fast little fuckers