I recently got a kitten and felt he needed different litter so I got the crystal type. He uses it fine but my older cat...I switched her's yesterday morning and she hasn't used it yet. I wanted her to adjust to it before I introduced them together hopefully this weekend.
She has gone a little while without litter duties before but this time around with there being new litter if this is something I should talk to the vet about or if you guys have any suggestions.