My boyfriend has a 3 year old beardie named Curt that never had problems with sand until recently (he was on a calcium sand substrate). Curt got impacted THREE TIMES in the last two months. The second impaction was so painful for him that he literally collapsed in pain with his eyes shut (there is a thread on here in Health).
Every time he tried to pass these impactions (
the first thing that came out was sand when he FINALLY pooped in a warm
bath with belly massage), he was
black bearding, and trembling in pain with his butt swollen. It was not easy for me to type that and remember how much he went through. I am shocked that he survived. MANY people on here have lost beardies due to sand impaction. Impaction can and will kill your dragon.
Sand can get in their eyes, under their eyelids, and cause infection and even blindness. There is a user on here with a photo to prove what sand can do to a beardie's eye.
Sand is also extremely unsanitary. It soaks up the juices from their poo and urates. If your beardie has parasites, the sand will help those parasites to grow. Do you really want your dragon to get a mouthful of any of that? I think not.
I do not care how "pretty" sand looks. It can harm or even kill your dragon in a lot of ways, and loose sand is not their natural environment. After everything Curt had to suffer through with sand, I absolutely refuse to believe that any type of loose substrate is acceptable.
Please dump the sand from your enclosure and use paper towels until you can get tile or repti-carpet.