I agree with John in that the woodlice wouldnt be able to keep on top of the whites waste - they do fine for darts but they produce considerably less volume lol
The dwarf tropical whites tend to be pretty invisisble but do breed well. I have found the orange rough woodlice much more active on the surface and also much bigger although their care is identical. A good mixture of woodlice and springtails is always good to keep mould and some of the waste down (I seed all my phib vivs with custodians) but they are too small to be food items for a large white tho.