What do I need to do with my two Russian campbells?

[GreenCherry]

This is my first time having hamsters and I have no idea what to do with them. They are both Russian Campbells and all I have done is to provide food, water, bedding, mineral chews, treats and a sand bath.

Both of them are 8 weeks old and 1 of them always hides in houses and the other always stays outside and I just found out that you are not suppose to put them together so that is something that I need to fix soon. I also need some toys for them but I have no idea which ones to get to prevent any accidents.

I also need to know if the temperature is okay for them to live in. I'm sorry if this is long but this was a birthday present from my parents who also have no idea how to take care of them. Please give your advice on what I should do!!