Want this question answered?
About a year old
It depends on the hamster, so i dont know.
2 months
5-60
If they are both female yes. Keep all males alone in a cage.
Just a few months.
They can still get together even if one is old and the other is young, it just depends on the hamsters.
If it is notably bigger.
If the 1 year old hamster is a syrian hamster DO NOT put another hamster with it. They are hamsters that NEED to be alone. If it is a dwarf, hamster, it might be ok. Dwarf hamsters like having each others company. However, if the 1 year old hamster is not use to other hamsters, it might not go over to well.
Syrian Hamster(aka Golden Hamster, Teddy Bear Hamster, Panda Bear Hamster, etc. etc.)- Males at 40-50 days, females at 30 daysCampell's Dwarf Hamster(aka Russian Hamster, etc.)- Around 45 daysDjugarian Dwarf Hamster(aka Winter White Dwarf Hamster, etc.)- 40-45 daysRoborovki Dwarf Hamster(aka Robo Hamster, etc.)- Approximately 30 daysChinese Hamster- Approximately 30 days
no
* * * == == * * * == == == ==