Yeah my attempt with this plant didn't go well either, I had it planted in gravel and have heard since that it's better attached to wood/rock, mine just slowly deteriorated and in about 2 weeks there was nothing left (though that was before introducing Co2/EI ferts). In my lfs they had it in sand and it looked OK but only OK. It's a pretty plant when healthy though so might be worth a try if you can give it ideal conditions.