Hi Simon. Ive just got a Ornate Horned Frog last saturday. Ive got mine in a faunarium with coco fibre substrate, a small pool, shallow gravel&water pool, some spagnum moss and some cork bark to hide under. Ive only had it a week but it sems to like to hide under the bark berried in the substrate waiting for any crickets to go past. Ive got a heatmat on the bottom which helps with the temp and keeps the humidity ok but i mist daily. Ive been told that they like earthworms but ive not yet tried them ive only fed crickets. Mine does however have a hop aboit every few days and has had a dip in the pool twice. Glad i got it as its fun to watch when eating.