hamster injured

Question
Okay so I re-introduced them together and Bindy attacked the same boy that got bit on the nose. They were fighting really bad, I had to separate them!! I got bit twice, and the boy that was attacked by Bindy has missing fur, and a really bad open wound. But the good news is the vet said he would be fine. He's running, eating, and drinking normally so thats good. But i've returned Bindy to the pet store along with the girl, and now they are all living in seprate cages. I think that this is better off for all of them. Do you think the wounded hamster will be okay? I'm keeping my fingers crossed.
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Okay thanks so much. Hopefully I can I put them all back together because I already have 3 hamsters besides them; so that makes six hamsters i'm taking care of daily. And I have the crazy hamster "bindy" seprated from his brothers (like you said) but, I have him in a very small carrying cage and there is no water. Every couple of hours i'll give him some water, but is this a good idea??
When I went to the pet store to buy them about a month ago, there were five of them. They were all related, but I decided to leave one behind because he was very mean. I store employee couldn't even handle him. And now I am worried about Bindy becoming his brother/sister at the pet store. They were all very nice when I brought them home, and then the female went into heat and they all started taking charge of her. So I removed her because I read that its bad for brother and sisters to mate. And now that I had to remove Bindy, I'm left with 2 hamsters. :( Do you think that taking the female away caused Bindy to "own the place"?? Because I did notice that after I took her out, he started becoming the "boss" like a week later. Any suggestions for me?
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The text above is a follow-up to ...

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I have 3 dwarf hamsters. They are all boys and they are all brothers. One of the boys is very active during the day and night, sometimes I think he never sleeps. He is always fighting with his brothers. He started a fight with one of his brothers tonight. It was so bad I had to separate them!! Then I noticed that the hamster he was fighting with was bleeding from the nose! So I took him out of the cage, and I am going to take back to the pet store where I bought him. Is this a good idea?? or can I leave them alone all together? They're all so cute together, but they're very deadly when the fight. I need help, please respond. Thank you!!
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hi ashley,

its not true that all dwarf hamsters can live together without fighting, what sounds like is happening is they are trying to establish the 'boss' hamster if you like, they are most likely reaching sexual maturity as well, and their need to mate me be causing the aggression. i think the best thing to do here is seperate the violent one for a while, keep him within smelling distance of his brothers, maybe a week or so, let him calm down, then reintroduce him. get a box big enough so that they cant climb out, and put them back together, if they seem like they might fight seperate them again immediately before any damage is caused, keep doing this a few times and he may stop picking fights if however he is still aggressive, he needs to be kept away from his brothers as he will eventually try and kill them.

best of luck, and thank you for your questions, please feel free to ask again and let me know how you get on.

joanne :)

p.s. clean the wounded ones gently with a q-tip and luke warm pre-boiled water, if they get infected or a deep cuts, see a vet.
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hi ashley,

if you can get a bigger cage that would be a good start, get a very small dish with water in it and put it in his cage, you will only have to change this about twice a day then. this should do until you can find him a bigger home, preferably one with a water bottle.

you should try and keep the female as far away from the males as possible, preferably in another room, as hamsters rely mostly on smell, the males probably know that shes still around. once bindy has calmed down, try reintroduction.

good luck and thanks for your follow up, if theres anything alse, please, just ask.

joanne :)

Answer
hi ashley,

thanks for keeping in touch! i think this is probably for the best, im sorry you had to seperate them, even though we'd have liked them to stay together, but at least we know they are all going to be living stress free from now on :)

i wouldnt worry to much about the cuts, they must get them all the time in the wild, and if you keep him clean, it should just heal itself, so listen to you vet, he'll be fine   :)

thanks so much for your questions, as always, ask away.

joanne :)