So sorry to keep this waiting!! ABG mix is your best option in terms of cleanliness. It also takes a lot longer to acquire a foul stench than coconut fibre. Remember not to keep the humidity too high for long periods. Also if you plan on using ABG mix (I get mine from Josh's frogs) keep in mind that you will have to feed your toad in a separate container as the mix contains chunks of wood, etc. That the toad may swallow. And the order should be hydroballs/false bottom, mesh (to separate layers and prevent mixing) then ABG mix or whichever media you end up using.