Thanks a lot for your reply, sorry it took me a few days to get back to you - the second wave of Covid has caught up with us and the entire household is now under quarantine...!
That's very useful information and I will see if I can get my hands on a bit of tree fern somewhere, sounds like a great idea to mount it - I sort of just bunged it in a terrarium for the time being but will improve on that once I'm able to leave the house again