So yesterday was tank cleaning day in our house. I cleaned and rearranged the FBT's tank/viv, I put them back in and I was looking at it and decided a bit later that I wasn't happy with how i had it set up (I hate it when I do that...as I'm sure they do too...lol). I took them back out, rearranged it again (I'm still not completely happy with it but at least it's easier to clean the filter now) and put them back in. Now they are hiding and I haven't seen any of them outThey either have to get use to the new lay out or they are pissed and hate it...lol.