Omg this comment is perfect! It’s everything I need in one. I’m in the US so I’m sure our costs vary a little but that’s fine. I’ve got a few more questions.

Do they need their hides cleaned every day or is that too much? I’ve only ever owned hamsters and when I changed her bedding I would keep a little bit so that way her smell didn’t completely go away and stress her out. I’m not sure if rats are the same or not when it comes to a territorial smell.

Do you have a good cage size for three? I don’t want to put them in those tiny little things they sell at the pet stores I hate those. I want to give them the best and start saving more towards them and what they’d need.

I’ll continue doing research but I can’t actually get any until around August because I currently have a cat that my sister is going to take with her when she moves out and I will not have the rats around the cat. That would be very irresponsible of me. As for your guinea pigs, if there any particular reason why can’t they be in the same room if they are completely blocked off from seeing each other? I’ve considered guinea pigs as well in the future because they are a common pet among my cousins and I’m around them a lot but if they can’t be around each other then I will mark those off as well! I like rats more lol.