I've kept them for a few years. They are incredibly beautiful! Keeping them is comparable with keeping montium, deremensis etc., though cristatus is a bit more a lowland species. I kept them in well planted 50x50x73cm glass terrariums, 24C during the day, and about room temperature at night. They like a lot of water too. Just like quads, montium, deremensis, matschiei, they just sit there and drink when you spray water above them. Highly recommended species for experienced keepers