I've had a small smasher (I suspect N Wennerae) a couple of weeks now and its dug itself quite a network of tunnels under my LR, refusing to live in the rock itself. These days my tank is always cloudy with new tunneling and crap being kicked up by the mantis burrowing around - will it ever finish doing that? Man was putting a mantis with 4" of southdown not a good idea (was opting for a spearer when I first set up).
thx
thx