Actually, both sphagnum, coco fiber resist mold. Sand, if maintained properly, also resists mold.Ok. One is for an avic. Coco fiber is probably not what you want. I only started having an avic a few weeks ago, but I think I'm going to trade that out for something else--mold might be an issue.
1) Sphagnum is a leafy moss that absorbs and retains moisture like those paper towels they have commercials for.but sphagnum is moss and how will adding sand make it easier to burrow in if it is not moist
2) When you blend sand while moist it actually binds with what you're blending it with in such a manner that it can be burrowed in both wet and dry. Just remember to fluff it as you prepare it in the enclosure.