Guide by Nikolai from PN Forum
The Pet Kennel is a place where you can feed your pets. It takes 2 hours to feed the pet, no matter how many foods you feed it. Here are some things to know while using this feature.
This is an area within the Pet Kennel window where you drag and drop various foods in. There are a total of six empty boxes with icons. What are these icons? They are food-type icons corresponding to certain foods like Grain, Vegetables, Debris, Meat, Dessert, etc. You can't just put any food into each box. The food must be the correct type like a matching game. You can obtain food from the Visiting Residents or Collecting Foreign Matter quests at the Rewards Quest, Explorations, Item Mall, and
Food types: Grain(cereals), vegetable, debris(others), meat, dessert, medicine, and random.
There are two ways to figure out if the foods can be placed in the box:
If you click and hold your mouse on a food item you have in your bag, you may see box(es) turn green. This means that it's matching food-type and you can feed it to the pet!
Put your mouse over the food-type icon and it should display what type of food-type it is. As you do this more often, you'll know right away which food-type the icon is. Then in your bag, put your mouse over a food item that you plan to feed. There should be a long translucent box that pops up near your cursor. Look at the bottom of the box where it says Food-type. and beside it tells you the food-type.
I recommend the first method because some food-types, shown in the box when you put your mouse over a food item, may be different than its matching food-type icon in the Pet Kennel. (Grains = Cereals, Debris = Others, Random = Any)
As I said above, digestion takes two hours to accomplish. But you can instantly digest by paying 8 gold/gift coupons. After two hours are over, you will notice that the food-type icons have changed. Also, you may see that your previous foods are still in the boxes. This means that you need to refresh it and you can do this by dragging your pet into your pet (you'll notice the food will disappear). After that, you can put your pet back into the Pet Kennel.