your bps will vary alot from tank to tank depending on lighting, flow, surface agitation, plant mass, diffustion efficentcy ext ext, with that a generall starting point should be 1-2 bps and slowly increase over a weeks time (start with less to much from the start can stress andor gas your fauna(remember to shut off when adding new fish to or add after its off).
when doing increase watch your tank every 15-30 mins to watch for signs off stress on your fauna. this will always be a trial and error thats why a dc helps first timers as its a visual guide but it does take time to read/show. i would also keep your psi above 40 if ur using a ssr single stage reg for two big reasons, it helps keep a steady bubble rate *some crappy nv dont do good jobs* and two for rise and decay aka end of tank dump even though its a slow prosses it helps keep the increase % to a minimum.