I have multiple generations of bristlenose all together and new fry aren't bothered, but I don't know if that would be true if the other plecos weren't all bristlenose.
If you want to be sure they survive, moving them would be a good idea. Are the fry still in a clump in the tube or are they loose and spread out? I don't have any experience with removing fry, but I would think that if they are still tightly together and Dad is tending to them, you should move him along with the tube so he can continue to care for them until they are ready to come out on their own. Hopefully someone who's done this can give you their experience.
Good luck and congrats on the spawn. :cheers: