Hi and welcome! Glad you joined. Im Abby, I have two boars names Sammy and Cody. Here are some general tips thag might help you.
Pellets: A good brand You will need PLAIN Timothy pellets, no nuts, seeds, or colores bits. The amount of pellets to give your pig is 1/8 of a cup per pig, per day. Pigs under 6 months can have unlimited pellets.
Hay: Guinea pigs need a long grass hay to keep their teeth worn down and their gut moving. Good hay to give them is either Timothy or Orchard. There are more substitutes but I cant think of the other substitutes. Baby guinea pigs need Timothy hay, along with either parsley or alfalfa hay WITH their Timothy for extra calcium to grow. Alfalfa is not a long grass hay to be feeding your pig. Its a legume like a pea, and does not keep their teeth worn down.
Water: People say water bottles are the best choice, because water dishes get too dirty and can flip over. If you are worried about extra minerals in the water and you have a Brita Filter you can use that (I use it)
Cage: A C&C cage is the best type of cage for a pig. If you look around you can see where to get DIY tips and items on how to build one. The minium space for two pigs (girls get along in this well) is 2x4 grids. If you can fit it, 2x5 is preferred. For males a 2x5 or 2x6 fits well and they get along. Warning: if you get grids, make sure the squares are 9x9 in the grid. They changed some of them to 8x8 and peoples guinea pigs were getting heads stuck in the bars.
Bedding: Nice beddings to use are either fleece, or kiln dried pine shavings/aspen shavings. Never use Cedar because the oils in it cause respitory and foot problems.
Hide Houses: Every guinea pig needs a hidey house. Dont get the medium size pigloo, those cause lack air circulation and who wants their pig sitting in a stink hut. Each hide house you get will need to have 1 entrance and 1 exit. Some people including me use RubberMaid stools for hidey houses. There are other house options besides stools dont worry.
Veggies: Good veggies to give your pig are: Green/red leaf lettuce, cherry tomato, carrots every once in awhile, and green bell peppers. Green bell peppers are a good source of vitamin c for a pig. Piggies cant make their own vitamin c, so giving them 1/8 of a green pepper a day will help them. To add about the carrots; guinea pigs cant process sugar that well, so keeping the amounts of fruit and carrots small and spread apart is best. There are other veggies you can give your pig and how often to, and what veggies are not good to give: (broken link removed)
Care and cleaning of your pig: Guinea pigs rarely need baths, unless they are super smelly or dirty. A good shampoo to use for your pig is either Gorgeous Guineas, or Squeaky Clean for small animals from a petstore. Also, their nails do grow and there are tutorials on how to clip them or have a vet clip them for you. If you ever need a vet, make sure they are an exotic pet vet and are cavy savy.
