setting up my 40g, where can I steal BB from my Fluval 206 in my 36g?

[bobc4d]

I have a fluval 206 in my 36g, where can I steal BB from it to seed the 306 for my 40g? Can I take one of the foam filters out of the 206 (without a disturbance in the force ), replace it with a new one and set the foam in the 40g by the inlet?

on a side question, when I set up my 36g, I bought some BB from a guy online, big square of foam covered in BB and got the tank running but I've lost his URL and google is useless without the correct wording.

[Tetra1990]

Have you thought of running the new filter,for the 40g, on your current tank for a week or two?

[bobc4d]

are the two interchangeable? Can I just place the foam filter in the 36g for a week or two to gather bb?

[Tetra1990]

Are both filters canister? I only have hob filters, I haven't gotten into canisters yet, kinda pricy. I'm sure you can stuff a media cartridge into your established filter for awhile.