Friday morning crews started pouring the concrete pad for the fire protection tank at the site of the future Fresno Aquarium.
They expect to have the tanks installed in coming weeks.
The first building will be the Aquaculture building, its not a full aquarium yet, but it is the basement for the future aquarium.
Organizer Tom Lang hopes to be have fish in tanks by the end of 2017, but he says the Aquaculture will only be open to members.
Once finished if people want to visit the Aquaculture building they can become members online. Lang says the entire project doesn't have a timeline because they still need millions of dollars of donations.