guinea pigs rarely fight, if there is blood drawn then that means they are fighting, if they are sniffing each others bums and teeth chattering then its all normal guinea pig behaviour and will pass as soon as they figure out who is the boss, this is what all guinea pigs do, they have a little "argument" about who's boss, then they get over it. if it gets too the point where they are drawing blood, then i suggest putting a cage divider in the middle of the cage, to avoid males fighting make sure they have a big cage 7.5Square feet, two pigaloos, two water bottles and two of everything so theres no fighting over who gets what. the longer you have your guinea pigs the more and more you will start to understand what each sound means, i was like this also when i got my first guinea pigs guinea pigs get their vitamin c from fresh veggies such as bell peppers, guinea pigs need veggies morning and night to prevent vitamin c deficiency, ill give you a list of safe foods, my guinea pigs weren't to interested in the bell peppers at first, but now they love them so just keep it in their cage and they will go too it eventually. i would pick them up after they finish eating, or pick them up and hand feed them =] guinea pigs are prey in the wild so when they see something bigger than them their first instinct is too run, over time your guinea pigs will warm up to you more and more and the running away will become less frequent. when i first got my guinea pig i was way too scared to even touch him cause he was so little! but i just wrapped him in a blanket, layed down and put him on my chest and just pet his head. they can tell when your scared so try not too be, you've only had them for 2 days so don't worry it will get easier! =] good luck
also, dont listen to people who say dont put males together and they fight its not true, ive had my males for like 8-10months and they have never fought, because they have a big cage and space away from eachother and they also have two of everything
btw, incase you didnt know dont use hamster balls or wheels
Timothy hay based for healthy, grown, chubby guinea pigs.
Parsley – curly or plain (high in calcium)
Coriander
Collard greens
Mustard greens/ leaf mustard
Water cress
Garden cress
Lettuce – cos lettuce, red lettuce
Swiss chard, red chard
Beet greens
Spinach (feed in moderation)
Carrot tops/leaves
Dandelion greens
Kale – curly or plain
Broccoli
Brussels sprouts
Capsicum – red green yellow
Tomato (leaves poisonous)
Tamarillo – leaves poisonous
Orange
Mandarin
Strawberries
Kiwi fruit
Mango
Guava
Rosehip
String beans
Asparagus
Basil
Dill
Mint
Celery/leaves
Baby corn
Turnip
Parsnip
Cucumber
Zucchini
Pumpkin
Apple
Pear
Peach
Cherries (without seed)
Watermelon
Banana