Hi thanks for all your posts of concern,I really appreciate it.hopefully I can get to the bottom of this with your help. Crittervet- I am due back 2 the vets on the 5th so I will suggest that to my vet.she has spoke to me about this before but said it can be quite long winded,hence the course of antibiotics.although I think this wud be a good next step seen as though she's not responding as well.ill let you know how it goes.blackcrystal-thanks for the advice,I hav been looking into getting under tank heating but with it being a large viv I wasn't sure it wud heat it as well.also id heard bad things about them.changing the viv atm is out of the question as I can't afford to.my viv is wooden so how wud I go about putting uth in?what size and wattage?and what thermostat is good 2 use?wud u add and additional heat source? Thanks for all the input guys,there's so many different opinions out there,its goos to get sum specific advice.x