Digging tray.

The run is being updated and I'm putting in a gravel tray and want to fill it with bark and/or compost for the monkeys to scrap in.

I've not seen any bark that actually says it's natural, yet I've found natural hardwood and softwood chips, would these do? If not, what have you guys used?

Also, what compost could I use since I know it has all sorts of stuff in there

cant help with the bark but the soil ive been using top soil

DIY store top soil will have been sterilized so is quite safe for buns. My pair both like to dig in the gravelled are of the back garden above everywhere else. I would avoid most commercially available bark products as they are generally pine based so not good for bunny digestion if they decide to eat it.

Ahh thankyou! I'll look for some top soil then.