I'm going away to germany in a few days, be gone for nearly 2 weeks, and when I get back, I'll be setitng up 2 10g tanks- a 3 way divided for my three bettas, and one for female guppies. I'm moving the remaing fish in the 29 out very soon, and planning to toss either a silverside or table shrimp in the tank to start a cycle. also- I'd like to try to establish some filter media for the two future tanks at the same time. I'm planning to use whisper filter cartidges; can I just throw those loose in the tank? or what?