Right!! Heat mat been on since 4pm yesterday and temp in viv is only 29.3C. It isn't hot enough!!
Due to size of viv, I can't use ceramic yet as fitting + bulb+ guard means it will sit too near the floor. Plus she is just a baby so I'm going with heat mat alone until she is big enough for larger viv.
I will therefore (like a lot of other keepers I have found) be putting the mat inside the viv. HOWEVER, I will put polystyrene under the mat and either a piece of Perspex or lino over the top to prevent burns. PLUS stat probe will be in contact with the mat and so it shouldn't get anywhere near hot enough to burn my girl.
Thank you so much for your advice on this but I've made an informed decision based on the need for a higher temp and what I've read other experienced keepers are doing in the UK
If they've had no problems for the numerous years they've kept/bred royals, then this method is for us.
Don't want to upset anyone, there seems to be reasons for and against Inside and outside viv. I need higher temp though so inside (with safety precautions) is for us.