i've been keeping a fairly small colony of lats. And every few days to a week, the enclosure develops a layer of frass.
What i do is I would remove it after a while and clean out the tub. It's a small 1 gallon plastic tub that houses around 100+ adult and juvenile roaches. Easy to clean at this point.
But what do you do when it becomes established to the point where frass develops inches upon inches in just a matter of days?
Do you just keep it as is, like a substrate?
Personally, i remove it before it gets soggy when it mixes with veggie and fruit goo coz that's when it begins to smell.