Can anyone tell me what this substrate is and possibly where i might be able to buy it around Brisbane? It seems to be some form of shredded bark/coir (or even maybe coconut husk?) but i can't seem to find anything that looks like it anywhere.
Its called Repti Bark made by ZooMed. I personally stopped using it years ago due to it dust-creating carcinogenic properties. But it was the bees knees 10 years ago. So find something better. Hence why its not regularly available in Brisbane.
Kritter's crumble is the way to go if you want it natural looking. I will also add that the substrate pictured is coconut husk as Wally said and NOT Repti bark, you can buy it in compressed bricks at most pet shops or online and its really cheap.