Trixie's coconut fibre humus is safe for hamsters, as long as you moisten it well before use and monitor the humidity to prevent mould. This natural, heat-treated substrate is free from mould, germs and fertilisers, making it suitable for small rodents like hamsters. It encourages their natural digging behaviour and allows them to create stable galleries if they are slightly damp. We recommend placing it in a separate container and removing any mouldy parts quickly.