I have a 55 gal aquarium that I stand on one end, covering the bottom (used to be one side) with parchment paper. I put my male in it (covering the open side with plastic) when it starts popping pollen. I remove and replace the parchment paper daily. Of course I do this on the patio, and change clothes & bathe before entering the flowering room. Its amazing how much pollen one can collect like that. Doesn't keep very long, even in the freezer. A few months at best.