Anyways, I bought the Quikcrete Playsand at Home Depot after doing a little research and seeing that playground sand is a cheaper alternative to the specialty stuff that is sold in pet stores. This stuff right here.

However, I just started reading more on this particular brand of sand and I am seeing mixed results. A few Q&A websites I've stumbled upon have answers saying that it's OKAY, but then others have responses saying that it can actually be deadly to the crabs.
So far, none of my crabs have gone down for a molt yet since I've adopted them, but I say this and now it looks like one of the little guys might be trying to burrow, although I'm really not sure.
So, I would really appreciate some feedback on this kind of sand. If this brand is actually harmful, some other cheaper sand recommendations that won't be harmful to hermit crabs would be great.