Well if you have the money then liverock will be a little bit faster (Since the baserock will just turn into liverock over time) But theres no problem with baserock. Either way, the recommended total is about 1 lb per gallon for filtration.
As for the snowflakes, I've never owned one but only because my tank isn't big enough.
As for the snowflakes, I've never owned one but only because my tank isn't big enough.