Not sure if it's any help, but I keep mine the same way as my cristata: cool (around 15 degrees celcius) & wet with humidity around 50. My fimbriata is on a spaghnum-slab and I let it soak on a plate of water once it feels dry. Not sure if it's the right way to keep them mine seems to do well this way here

I love this specie and I've been told by quite a few people that you can barely do anything wrong with it!