The Java Moss has already been attached to driftwood so all you need to do is place it into your aquascape. New growth can be trimmed and reattached to rock or wood. This can be grown under a wide range of conditions, recommended for breeders, beginners and all.
Driftwood can leech tannins. This may cause a slight yellow or brown tint to your water. This is natural and the effects will reduce over time. Boiling the wood prior to use can decrease the tannins leeching.