Hellos, I am wondering how to change to a new filter. The info: I have a 29 gallon tank with a Tetra Whisper 30 cycled. I just got an Aquaclear Fluval 50 to increase my filtration and give more options than the Whisper. Since the Whisper has these plastic comb things for the bio filter how am I supposed to 'transfer' my BB to the new filter? Or do I just have to wait and have both filters running for a couple weeks? With both running its like a whirlpool and some of my fishies are hiding in the corner. (this is with the new Fluval set to lowest flow) Thanks!