First pic is of shamus filters. 4.2 million gallons of water filters through. Water is changed by stripping salinity out and re-making water after it is highly filtered.
Second pic to left. Dolphin quarantine/ breeding tank.
Third pic second row. Main quarantine. Currently housing new stingrays. Most were over 10 feet long. You can see a fin sticking up.
Last pic and most interesting (to me). Mixing salt with a crane! Those white bags are salt and they are dumping it into a 50,000 gallon water pool.