Questionhi,
is it ok to use coconot husk to improve the humidity for red foots? do molds grow there? tnx
AnswerCoconut husk or coir, and the commercial version called Bed-A-Beast are often used and work OK. They do not mold easily, but have been known to harbor small mite-like animals.
My best luck (and many other's as well) has come from 'long-fibered sphagnum moss', such as Mosser Lee brand (http://www.mosserlee.com available at Lowes and other garden stores). This non-peat moss holds a lot of water, does not mold or mildew, is acidic enough to resist germs, and lasts for a few months in actual use.
There are several ways to use it, but the easiest is to take the block and dunk it in a bucket of warm water, then tease it apart. Squeeze a handful pretty hard and drop it in the habitat and fluff it. Repeat until you have 1-3" layer. The thicker end can be a bit dryer for the tortoises to dig into.
For some good care info, try http://www.redfoots.com