The 3 originally pictured terrariums are still going strong, although I did clean out the left hand one 2 years ago in order to set up my Southern Variabilis (there's a thread somewhere else on the forum about this). I've actually never had to strip them down (not yet anyhow). I use the left one for a group of Southern variabilis, the central one is now for growing out thumbnails (I have various Ranitomeya in it growing out at the same time) and the right hand one is still Varadero imitators. That's the only kind of imitator I still keep.