Hi all, I’m fairly new to bee keeping, it’s our 1st spring with a new established hive.
We bought a nuc from our local commercial bee keeper, we supplied our brood box and roof and he added a small super on top prior to us receiving it. This was back in February this year.
Unfortunately he placed foundation in the frames in our brood box and I’m wondering how I go about changing them back to a natural frame without disturbing the brood. Is it possible ?
Kind regards Ian
Hi there Ian and welcome to the forum and to beekeeping! I wouldn’t worry about the foundation for now, and besides, you can’t really switch it over unless it is empty 
Foundation is your friend for now - it helps keep brood frames tidy and straight, and also makes inspections less tricky for you as a newbeek because it makes the comb sturdier.
There are some benefits to letting the bees draw comb freely, but mostly having to do with integrated pest management plans to address varroa mite - which hasn’t yet arrived in Taz, lucky for you! 
In case you’re interested, the other benefit to not using wax foundation is that with varroa widespread in the US for several decades, the wax supply used to make it has steadily built up miticide residue 
. This does not directly harm bees but has a synergistic, sublethal effect when combined with all the other ‘cides they encounter when foraging. So, many beeks here do prefer to avoid using foundation.
About switching over to open frames at some point, if these are deep frames I strongly recommend creating some added structure to help distribute the weight better. I drill small holes under the top bars and glue bamboo skewers in - 3 or 4 of them. This also helps the bees keep the comb straight. You can rotate out older, very dark brood comb in a couple of years, cut out the comb foundation and all, install the skewers, and pop them back in.
Thanks for all your sound advice Eva, much appreciated 
Hi Eva, thanks for your meat skewer idea. I was wondering what to use as starter strips on 5 top bars i need to get bees started on. The waxed top bars the client provided yesterday are too long, so I’ll make 5 thin ones that I can screw or tie under the bars provided, prior to placing them into the hive, while trimming back any unwanted comb.