I have a female leo about 10 months old
Today i got a new leo female about 4 months old
But when i put them together the older one keeps biting her
Is this common as a new gecko in the territory
Many thanks

yes, it is common, she feels like her teritory is being invaded. you need to completley clean out the viv and slightly rearange so its like a new home to them both. thsi will mean that its not the territory of one or the other and they should be ok, unless you have a 'hot' female, in which case chances are she will never tolerate a cagemate.

can i just say, you got the new leo today? and your putting it straight in with the old one? Thats not a very good idea at all, you need to quarentine new lifestack for at least 90 days, to ensure that your new reptile isnt carrying any 'nasties' that it could pass on.

Many people have learnt the hard way and lost whole collections due to not quarentining, so please make sure you do.

Many thanks

[axel]

i would remove the smaller gecko it is common for a more dominant female to kill a smaller gecko only house same size geckos together and poizon is right you need to quarantine any new gecko