Black.J

my bristlenose breed today and i dont if i should leave the babies in the tank with the parents or seperate them?

and then what do i do with them?.

Dino

They should do fine with the parents.
Just make sure that they have plenty of food available as they eat like hogs.

Xenomorph

From all the research I've been able to do if you want to stop them breeding try upping your water temperature (slowly!) to around 78-80F as they prefer around 76-77F to breed.

I had my tank hovering around 78F since I set it up and they never bred, but I decided that I wanted a few so I dropped my temps (simulating seasonal change apparently?)and within 2-3 months I've got about 6 babies! Now I'll raise the temperature again to keep their numbers down - or I'll find a LFS who'll take them off my hands