fishtails

I made the kimchi and radish recipe and followed recipe to the tee.It tastes great but I like it tangy and I put it in my bastment to ferment.The temp is 50-55. Its been two days and it has not started bubbling. I put osters in it witch gives it great flaver, but worried if I leave it out to long it will go bad. Also will the radish ferment or should it be put right into frig.