I'm the happy owner of three male bettas, and I'm getting my own apartment this summer with a strong possibility of a good-sized (10G or 29G) tank, and it'd be nice to have a community tank to house some other fish with one of my bettas (probably my crowntail, has he has the most mild temperament). I've read hundreds of (often conflicting) websites by now about betta-friendly tank mates, and the corydoras catfish looks like my prime choice. The most daunting task about the prospect of a new tank is, I think, getting the right equipment. I have no filters of any kind, and while information about where a cory comes from can be found anywhere, I'm not sure about what a school of corys would need as far as filtration and aeration in the tank. Is anyone willing to share their wisdom and experience?