I have 2 Asian Bumble Bee cats. 1 of which can usually be found with 1 of my BGK's. Usually he is only seen at night but does come out occasionally during the day for a feed. The other 1 hides in a stump that I have and can be seen quite readily as it is sheltered and dark. The stump itself is around 1ft wide (at the widest span of it's roots), about 1ft high and a circumferance of around 15cm. The top part looks as if it originally broke at an angle, ripping out a fair bit of the centre leaving nooks and crannies. I have a large Amazon sword that is at the bottom in the centre and it's roots have grown into and out around the centre of the log. It is mostly within this space and generally easily seen however it does come out during the day for feeding at various stages as does the other one but sticks to areas where there is places for it to hide if spooked. Having plants that seem thick but can be viewed through placed around these areas, or at the front of the tank seem to help as they feel safer and more comfortable within these environs, therefore more likely to come out during the day and be seen. At 1 stage I had another log in the tank close to 1 of the sides. Of an afternoon I used to come home and check the tank out from the side, everyday the 1 that hid within used to poke his head out for an afternoon gidday and happily swim around, almost prancing in front of me, he'd sit there for about 5 mins, then when I fed the tank he'd come out for a feed and go back to his log. Unfortunately I took that log out and isn't so game to come out like that any more. Hope this helps.
Cheers,
Bryce.