Thinning substrate a bit more

Thinning out substrate more to prevent localized thick substrate, larger ones tend to dig trenches around the edge, pushing sand inwards.
Substrate dry out very quickly, should start spray heavily at least once a day, or preferably twice a day.
Only very little sign of feeding, probably done by larger ones and odd B.
Placed 2 small pieces of Apple on each side.
Added a few pieces of crushed Eucalyptus torelliana, AIF leaves & Liquidambar formosana，handful of cypress mulch, a few pinch of AIF mulch & Eucalyptus globulus to provide them more cover and as top substrate.