Yes, absolutely. We can microchip most pets from a young age.
Yes, my advice is to microchip all the pets. It's really helpful (for example, in case someone steals your animal or they become lost). In fact it is the law that dogs must be microchipped from 8 weeks of age.
If you notice worms in your pet's stools, you should go to the vet in order to receive the suitable product for worms.
If you notice fleas on your pet, you should go to the vet in order to receive a suitable product for fleas.
