So I bought this sand art display from Ocean City back in 2017 for $12.99. since then there's hardly any more blue liquid inside, and most of the sand doesn't move anymore.
I did see a couple of YouTube videos on how to do it, but the sand art displays they were showing, look more larger and better?
My sand art display is just a little thing but it does have holes on either side where you could put a needle in but the sand and liquid it seems like is just a solid piece of glass.
In the YouTube videos they are using water, in my sand art display, the liquid is blue. So I want to know, what is the blue liquid and what is it called? Because I don't think I can use water, I think I have to use this blue liquid but I have no clue what it is. Here's a photo of it:
