It's usually just excess fluids. If a beardie is well
hydrated, you will have a gooey to slightly firm urate, well formed poo logs and a teaspoon or so of clear fluid. It's a normal healthy poo. Its when the poo is not well formed and just a soft pile that isn't good. Depends on diet too, I've noticed the more veggies they eat that contain more water, their poos will be a bit looser but still formed. Hope this helps.