And then eventually later on in the seventies, we redid the whole water circulation system with PVC. The original system was all lead, and that eventually got clogged up with debris and salt and crustacean. So that was the start of bringing the aquarium out of its doldrums. And then I think building the coral reef tank in the middle of the rotunda was probably the really defining moment when the aquarium started to get out of low gear and become the institution that it is today.
