i believe you can have too many pets. fortinatly i havn't hit my "too many" mark yet. you should be able to provide vet care, space, and equal love and attention to each pet.if you can't than you have too many pets.

a couple my mom use to work for have 27 cats and 12 dogs. they do have the space and the vet care, but not the attention. they have too many pets!