Hello! Recently, I started running low on prime, so I decided I needed to buy more. I went to the LFS that normally has in stock for a price lower than any other I have seen. There was none there, so I moved on to a petco that always has it. It was gone there too. I kept looking but it would seem no one has any right now. What in the world happened to it? Is there a shortage of prime? I wouldn't think so. This morning I realized my bottle was empty, and I was forced to use tetra aqua safe. I just cannot figure out what would have happened to it all of a sudden, anyone know what happened?