They are most likely fruit flies, not gnats. Well, the most common reason for fruit fly invasion is because leftover vegetables or fruit are being left untouched. Those flies like to crawl all over the fruit.
To get rid of them, clean the whole cage thoroughly and replace all food and bedding. If you don't you might find some maggots in your cage!
You might need to clean your hamsters cage
Yes.
Hamsters eat plants and hamster food.Animals likeb cats,dogs,birds,snakes,ect eats them basically any thing like a cat and bigger.
No, defiantly not. It could potentially be very harmful to the hamster.
Hamster cages with wood chips.
humsters like to run around not sit in cages and it also depends what are your hamster.
Pet shops, eBay or maybe a neighbour or friend who used to own a hamster.
oh no, no they can't they are one of the biggest of the hamster breeds.
no. hermet crabs neeed water to live therefore it will not survive in a hamster cage.
no, they should be in seperate cages.
a tiny bit if its in your room you cant smell it
At every store that has pet cages.
yes when i did i had 57 babies so i got free cages from the hamster club