If you use coconut coir, after you hydrate the brick, you get rid of the water and squeeze the excess out. Then you mix it with that same amount of either top soil or play sand (50/50). When you put this substrate into the habitat and smooth it out, the lights and heater (if you use one) quickly dry out the top layer of substrate, but if you dig down it will still be moist underneath. So in actuality, the tortoise is walking around on a dry floor. Every so often you can dig down and see if its still moist and if not, add some water and stir it around with your fingers. This is the time to pick out any poop you can find.
It sounds like your tortoise was in a habitat that was kept too wet, even the top layer was wet. Mixing with either play sand or top soil helps to dry out the top layer.
Now that the tortoise is on a hay substrate be sure to soak him a little more often. I used to keep my young animals on oat hay pellets and the little leopard baby that I kept is now pretty pyramided at 3 years of age.
Yvonne
It sounds like your tortoise was in a habitat that was kept too wet, even the top layer was wet. Mixing with either play sand or top soil helps to dry out the top layer.
Now that the tortoise is on a hay substrate be sure to soak him a little more often. I used to keep my young animals on oat hay pellets and the little leopard baby that I kept is now pretty pyramided at 3 years of age.
Yvonne