There is a pump with a fountain. I think I am missing parts but don’t know what to order as I don’t understand the workings of the 2 tier pond. I don’t know how to pump the water back to the top tier so it can flow over the rocks to the bottom. The tubing seems to be cemented in also. Thank You

I WAS TOLD SHORTLY AFTERWARDS THAT IT COULD CAUSE TOO MUCH HUMIDITY & CAUSE MOLD! I HAVE 7 NICE SIZE HOUSE PLANTS IN THE SAME ROOM. I ALSO HAVE 3 CHIHUAHUAS & A CAT THAT CAN REACH IT TO DRINK, I ADD FRESH WATER IN IT EVERYDAY & IT HAS A NICE SIZE PUMP IN IT SO IT TURNS THE WATER GOOD. WHAT ABOUT THE HUMIDITY???