I would take them in get them tested and see from there where it goes.I have a lot of cats.I thought it would be very hard but it's not.Mike does the litterboxes and I do the feeding and we both do the playing.They sleep well together also.At first..it's always tough until a few months go by then they seem to all get use to each other and even sleep next to each other.There are always hard days but mostly everything is perfectly fine.We also share cleaning.So it works out.Good Luck.They're worth it.