How do you store your litter? Unfortunately any of the grain-based litters are prone to bug infestations, especially if they aren't stored in an airtight container. That, and frequently changing out the litter in the box are your best defense.
"To close your eyes will not ease another's pain." ~ Chinese Proverb
“We must not refuse to see with our eyes what they must endure with their bodies.” ~ Gretchen Wyler