I’ve just gotten two hamsters yesterday and I’m experiencing some problems.
Firstly, they were kept in a cage without any wheel or water bottle, whatsoever, so I think that they do not know how to use the items. I’m currently finding a water dish as a replacement for the water bottle before I can find ways to train them.
Secondly, one of the hamsters is more aggressive and sometimes bites me when I am holding him. I’m afraid that it will attack the other. However, I think that they are both females and so I’m unsure if it will attack or not.
If they are syrian hamsters, also called black bears, teddy bears, normal, regular, and panda bears then they need to be separated. Syrians are loners by nature and will fight to the death if kept together. Even if they do not seem to be fighting right away than their immune system will be lowered due to the constant stress of living with another hamster and they may become ill.
Besides that two to three weeks old is far too young for them to be away from their parents. You need to be feeding them high-protein foods until they reach about 5-6 weeks of age. Foods supplemented with their regular seed mix/lab blocks and veggies such as plain chicken, soy milk and tofu.
They will figure out the wheel and the water bottle soon enough. Don’t keep the water dish for long they don’t stay clean very long and a hamster getting wet is dangerous. If the water bottle is low enough than they will figure it out soon enough.