I have a sponge filter with a Walmart tetra whisper air pump...very quick. I have a plastic value that lets me adjust the airflow. I'm very happy with it after having the whole baffling business. This is much easier and cheaper. It looked really complicated for some reason when I read about it but actually it's very easy. On you tube there's a demo for ati sponge filters. It shows assembly of it, but when I got mine it came assembled already. I ordered through kens fish online: http://www.kensfish.com/aquarium-sup...e-filters.html
There's a good sponge filter thread on here if you want to read up on them.