Have a look at cpsecrets.com - it's trying to flog an e-book a lot, but there's a lot of useful care tips.
Generally speaking, sit it in a few inches of rainwater in full sun. It's best in a mix of sphagnum moss peat and sand, which I hate to use because it's peat, but in the circumstances not much else is good..
I'm going to try keeping some of mine outdoors this year, though I'd be reluctant to keep it in the pond as there's so much in the way of nutrients/minerals in it.
Melanie